97509475 has 12 divisors (see below), whose sum is σ = 138185104. Its totient is φ = 66863520.

The previous prime is 97509469. The next prime is 97509487. The reversal of 97509475 is 57490579.

It is a happy number.

It is not a de Polignac number, because 97509475 - 2²¹ = 95412323 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278424 + ... + 278773.

Almost surely, 2^97509475 is an apocalyptic number.

97509475 is a deficient number, since it is larger than the sum of its proper divisors (40675629).

97509475 is a wasteful number, since it uses less digits than its factorization.

97509475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557214 (or 557209 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 97509475 is about 9874.6886026851. The cubic root of 97509475 is about 460.2731128616.

The spelling of 97509475 in words is "ninety-seven million, five hundred nine thousand, four hundred seventy-five".