97391436 has 24 divisors (see below), whose sum is σ = 240614640. Its totient is φ = 30554112.

The previous prime is 97391389. The next prime is 97391443. The reversal of 97391436 is 63419379.

It is a super-2 number, since 2×97391436² = 18970183612284192, which contains 22 as substring.

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, 238501 + ... + 238908.

It is an arithmetic number, because the mean of its divisors is an integer number (10025610).

Almost surely, 2^97391436 is an apocalyptic number.

It is an amenable number.

97391436 is an abundant number, since it is smaller than the sum of its proper divisors (143223204).

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

97391436 is a wasteful number, since it uses less digits than its factorization.

97391436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477433 (or 477431 counting only the distinct ones).

The product of its digits is 122472, while the sum is 42.

The square root of 97391436 is about 9868.7099460872. The cubic root of 97391436 is about 460.0873117189.

It can be divided in two parts, 9739 and 1436, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 97391436 in words is "ninety-seven million, three hundred ninety-one thousand, four hundred thirty-six".