97891436 has 12 divisors (see below), whose sum is σ = 175488600. Its totient is φ = 47751840.

The previous prime is 97891421. The next prime is 97891441. The reversal of 97891436 is 63419879.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298286 + ... + 298613.

It is an arithmetic number, because the mean of its divisors is an integer number (14624050).

Almost surely, 2^97891436 is an apocalyptic number.

It is an amenable number.

97891436 is a deficient number, since it is larger than the sum of its proper divisors (77597164).

97891436 is a wasteful number, since it uses less digits than its factorization.

97891436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596944 (or 596942 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 97891436 is about 9894.0101071305. The cubic root of 97891436 is about 460.8733188838.

The spelling of 97891436 in words is "ninety-seven million, eight hundred ninety-one thousand, four hundred thirty-six".