997673256 has 48 divisors (see below), whose sum is σ = 2740102560. Its totient is φ = 327872160.

The previous prime is 997673251. The next prime is 997673269. The reversal of 997673256 is 652376799.

It is not an unprimeable number, because it can be changed into a prime (997673251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92470 + ... + 102693.

It is an arithmetic number, because the mean of its divisors is an integer number (57085470).

Almost surely, 2^997673256 is an apocalyptic number.

It is an amenable number.

997673256 is an abundant number, since it is smaller than the sum of its proper divisors (1742429304).

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

997673256 is a wasteful number, since it uses less digits than its factorization.

997673256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195246 (or 195239 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 997673256 is about 31585.9661242141. The cubic root of 997673256 is about 999.2238163615.

The spelling of 997673256 in words is "nine hundred ninety-seven million, six hundred seventy-three thousand, two hundred fifty-six".