197369856 has 84 divisors (see below), whose sum is σ = 570357762. Its totient is φ = 65765376.

The previous prime is 197369849. The next prime is 197369863. The reversal of 197369856 is 658963791.

It is an interprime number because it is at equal distance from previous prime (197369849) and next prime (197369863).

It can be written as a sum of positive squares in only one way, i.e., 196448256 + 921600 = 14016^2 + 960^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72390 + ... + 75066.

Almost surely, 2^197369856 is an apocalyptic number.

197369856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197369856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285178881).

197369856 is an abundant number, since it is smaller than the sum of its proper divisors (372987906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197369856 is an equidigital number, since it uses as much as digits as its factorization.

197369856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709 (or 2682 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 197369856 is about 14048.8382437837. The cubic root of 197369856 is about 582.2286981606.

It can be divided in two parts, 19736 and 9856, that added together give a palindrome (29592).

The spelling of 197369856 in words is "one hundred ninety-seven million, three hundred sixty-nine thousand, eight hundred fifty-six".