197137408 has 88 divisors (see below), whose sum is σ = 433308960. Its totient is φ = 89088000.

The previous prime is 197137379. The next prime is 197137429. The reversal of 197137408 is 804731791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785283 + ... + 785533.

Almost surely, 2^197137408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197137408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216654480).

197137408 is an abundant number, since it is smaller than the sum of its proper divisors (236171552).

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

197137408 is a wasteful number, since it uses less digits than its factorization.

197137408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 197137408 is about 14040.5629516768. The cubic root of 197137408 is about 582.0000393634. Note that the first 4 decimals are identical.

Subtracting from 197137408 its sum of digits (40), we obtain a cube (197137368 = 582³).

The spelling of 197137408 in words is "one hundred ninety-seven million, one hundred thirty-seven thousand, four hundred eight".