97656290 has 8 divisors (see below), whose sum is σ = 175781340. Its totient is φ = 39062512.

The previous prime is 97656289. The next prime is 97656329. The reversal of 97656290 is 9265679.

It can be written as a sum of positive squares in 2 ways, for example, as 87928129 + 9728161 = 9377^2 + 3119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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, 4882805 + ... + 4882824.

Almost surely, 2^97656290 is an apocalyptic number.

97656290 is a deficient number, since it is larger than the sum of its proper divisors (78125050).

97656290 is a wasteful number, since it uses less digits than its factorization.

97656290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765636.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 97656290 is about 9882.1197118837. The cubic root of 97656290 is about 460.5040002042.

The spelling of 97656290 in words is "ninety-seven million, six hundred fifty-six thousand, two hundred ninety".