897039612 has 72 divisors (see below), whose sum is σ = 2743898976. Its totient is φ = 241219584.

The previous prime is 897039601. The next prime is 897039623. The reversal of 897039612 is 216930798.

It is an interprime number because it is at equal distance from previous prime (897039601) and next prime (897039623).

It is a super-2 number, since 2×897039612² = 1609360130994221088, 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 23 ways as a sum of consecutive naturals, for example, 100413 + ... + 108980.

It is an arithmetic number, because the mean of its divisors is an integer number (38109708).

Almost surely, 2^897039612 is an apocalyptic number.

It is an amenable number.

897039612 is an abundant number, since it is smaller than the sum of its proper divisors (1846859364).

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

897039612 is a wasteful number, since it uses less digits than its factorization.

897039612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209427 (or 209422 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 897039612 is about 29950.6195595350. The cubic root of 897039612 is about 964.4296206064.

The spelling of 897039612 in words is "eight hundred ninety-seven million, thirty-nine thousand, six hundred twelve".