97659690 has 32 divisors (see below), whose sum is σ = 234648576. Its totient is φ = 26013120.

The previous prime is 97659673. The next prime is 97659701. The reversal of 97659690 is 9695679.

It is a super-2 number, since 2×97659690² = 19074830101792200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43024 + ... + 45236.

It is an arithmetic number, because the mean of its divisors is an integer number (7332768).

Almost surely, 2^97659690 is an apocalyptic number.

97659690 is an abundant number, since it is smaller than the sum of its proper divisors (136988886).

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

97659690 is a wasteful number, since it uses less digits than its factorization.

97659690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694.

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 97659690 is about 9882.2917382559. The cubic root of 97659690 is about 460.5093444424.

The spelling of 97659690 in words is "ninety-seven million, six hundred fifty-nine thousand, six hundred ninety".