197958256 has 20 divisors (see below), whose sum is σ = 384151752. Its totient is φ = 98822336.

The previous prime is 197958247. The next prime is 197958289. The reversal of 197958256 is 652859791.

197958256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×197958256² = 78374942237123072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975 + ... + 19921.

Almost surely, 2^197958256 is an apocalyptic number.

197958256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

197958256 is the 8899-th centered pentagonal number.

It is an amenable number.

197958256 is a deficient number, since it is larger than the sum of its proper divisors (186193496).

197958256 is a wasteful number, since it uses less digits than its factorization.

197958256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608 (or 19602 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 52.

The square root of 197958256 is about 14069.7638928306. The cubic root of 197958256 is about 582.8067051886.

The spelling of 197958256 in words is "one hundred ninety-seven million, nine hundred fifty-eight thousand, two hundred fifty-six".