97442772 has 36 divisors (see below), whose sum is σ = 264489120. Its totient is φ = 27840624.

The previous prime is 97442731. The next prime is 97442777. The reversal of 97442772 is 27724479.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97442777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82272 + ... + 83447.

It is an arithmetic number, because the mean of its divisors is an integer number (7346920).

Almost surely, 2^97442772 is an apocalyptic number.

It is an amenable number.

97442772 is an abundant number, since it is smaller than the sum of its proper divisors (167046348).

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

97442772 is a wasteful number, since it uses less digits than its factorization.

97442772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165740 (or 165731 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 97442772 is about 9871.3105512895. The cubic root of 97442772 is about 460.1681363939.

The spelling of 97442772 in words is "ninety-seven million, four hundred forty-two thousand, seven hundred seventy-two".