97651812 has 12 divisors (see below), whose sum is σ = 227854256. Its totient is φ = 32550600.

The previous prime is 97651781. The next prime is 97651831. The reversal of 97651812 is 21815679.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4068814 + ... + 4068837.

Almost surely, 2^97651812 is an apocalyptic number.

It is an amenable number.

97651812 is an abundant number, since it is smaller than the sum of its proper divisors (130202444).

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

97651812 is a wasteful number, since it uses less digits than its factorization.

97651812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137658 (or 8137656 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 97651812 is about 9881.8931384629. The cubic root of 97651812 is about 460.4969613388.

The spelling of 97651812 in words is "ninety-seven million, six hundred fifty-one thousand, eight hundred twelve".