97449831 has 32 divisors (see below), whose sum is σ = 158155200. Its totient is φ = 59028480.

The previous prime is 97449829. The next prime is 97449839. The reversal of 97449831 is 13894479.

It is not a de Polignac number, because 97449831 - 2¹ = 97449829 is a prime.

It is a super-2 number, since 2×97449831² = 18992939123857122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97449839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9651 + ... + 16971.

It is an arithmetic number, because the mean of its divisors is an integer number (4942350).

Almost surely, 2^97449831 is an apocalyptic number.

97449831 is a deficient number, since it is larger than the sum of its proper divisors (60705369).

97449831 is a wasteful number, since it uses less digits than its factorization.

97449831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7376 (or 7370 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 97449831 is about 9871.6680961224. The cubic root of 97449831 is about 460.1792480388.

It can be divided in two parts, 974 and 49831, that added together give a palindrome (50805).

The spelling of 97449831 in words is "ninety-seven million, four hundred forty-nine thousand, eight hundred thirty-one".