97764331 has 16 divisors (see below), whose sum is σ = 118761984. Its totient is φ = 78562944.

The previous prime is 97764319. The next prime is 97764347. The reversal of 97764331 is 13346779.

It is a cyclic number.

It is not a de Polignac number, because 97764331 - 2⁵ = 97764299 is a prime.

It is a super-2 number, since 2×97764331² = 19115728831755122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (97764311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32226 + ... + 35128.

It is an arithmetic number, because the mean of its divisors is an integer number (7422624).

Almost surely, 2^97764331 is an apocalyptic number.

97764331 is a deficient number, since it is larger than the sum of its proper divisors (20997653).

97764331 is a wasteful number, since it uses less digits than its factorization.

97764331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210.

The product of its digits is 95256, while the sum is 40.

The square root of 97764331 is about 9887.5846899028. The cubic root of 97764331 is about 460.6737621858.

The spelling of 97764331 in words is "ninety-seven million, seven hundred sixty-four thousand, three hundred thirty-one".