97689408 has 28 divisors (see below), whose sum is σ = 258470400. Its totient is φ = 32563072.

The previous prime is 97689391. The next prime is 97689409. The reversal of 97689408 is 80498679.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97689409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 254208 + ... + 254591.

Almost surely, 2^97689408 is an apocalyptic number.

It is an amenable number.

97689408 is an abundant number, since it is smaller than the sum of its proper divisors (160780992).

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

97689408 is a wasteful number, since it uses less digits than its factorization.

97689408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508814 (or 508804 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 97689408 is about 9883.7952224841. The cubic root of 97689408 is about 460.5560509487.

The spelling of 97689408 in words is "ninety-seven million, six hundred eighty-nine thousand, four hundred eight".