97289904 has 80 divisors (see below), whose sum is σ = 261761024. Its totient is φ = 31104000.

The previous prime is 97289903. The next prime is 97289911. The reversal of 97289904 is 40998279.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (97289903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224472 + ... + 224904.

Almost surely, 2^97289904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97289904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130880512).

97289904 is an abundant number, since it is smaller than the sum of its proper divisors (164471120).

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

97289904 is a wasteful number, since it uses less digits than its factorization.

97289904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 97289904 is about 9863.5644672704. The cubic root of 97289904 is about 459.9273735372.

The spelling of 97289904 in words is "ninety-seven million, two hundred eighty-nine thousand, nine hundred four".