97009428 has 24 divisors (see below), whose sum is σ = 226515520. Its totient is φ = 32313600.

The previous prime is 97009399. The next prime is 97009433. The reversal of 97009428 is 82490079.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29028 + ... + 32196.

Almost surely, 2^97009428 is an apocalyptic number.

It is an amenable number.

97009428 is an abundant number, since it is smaller than the sum of its proper divisors (129506092).

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

97009428 is a wasteful number, since it uses less digits than its factorization.

97009428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5727 (or 5725 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 97009428 is about 9849.3364243486. The cubic root of 97009428 is about 459.4849749378.

The spelling of 97009428 in words is "ninety-seven million, nine thousand, four hundred twenty-eight".