197496738 has 16 divisors (see below), whose sum is σ = 438881760. Its totient is φ = 65832228.

The previous prime is 197496731. The next prime is 197496743. The reversal of 197496738 is 837694791.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 3657347 = 197496738 / (1 + 9 + 7 + 4 + 9 + 6 + 7 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (197496731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1828620 + ... + 1828727.

It is an arithmetic number, because the mean of its divisors is an integer number (27430110).

Almost surely, 2^197496738 is an apocalyptic number.

197496738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

197496738 is an abundant number, since it is smaller than the sum of its proper divisors (241385022).

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

197496738 is a wasteful number, since it uses less digits than its factorization.

197496738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657358 (or 3657352 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 197496738 is about 14053.3532653243. The cubic root of 197496738 is about 582.3534360823.

The spelling of 197496738 in words is "one hundred ninety-seven million, four hundred ninety-six thousand, seven hundred thirty-eight".