97630428 has 48 divisors (see below), whose sum is σ = 262760960. Its totient is φ = 27635904.

The previous prime is 97630397. The next prime is 97630433. The reversal of 97630428 is 82403679.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3825 + ... + 14487.

Almost surely, 2^97630428 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 97630428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131380480).

97630428 is an abundant number, since it is smaller than the sum of its proper divisors (165130532).

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

97630428 is a wasteful number, since it uses less digits than its factorization.

97630428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10786 (or 10784 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 97630428 is about 9880.8111003095. The cubic root of 97630428 is about 460.4633453526.

The spelling of 97630428 in words is "ninety-seven million, six hundred thirty thousand, four hundred twenty-eight".