97911892 has 12 divisors (see below), whose sum is σ = 184526356. Its totient is φ = 45190080.

The previous prime is 97911881. The next prime is 97911899. The reversal of 97911892 is 29811979.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46703556 + 51208336 = 6834^2 + 7156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97911899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941409 + ... + 941512.

Almost surely, 2^97911892 is an apocalyptic number.

It is an amenable number.

97911892 is a deficient number, since it is larger than the sum of its proper divisors (86614464).

97911892 is a wasteful number, since it uses less digits than its factorization.

97911892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882938 (or 1882936 counting only the distinct ones).

The product of its digits is 81648, while the sum is 46.

The square root of 97911892 is about 9895.0438099081. The cubic root of 97911892 is about 460.9054189611.

The spelling of 97911892 in words is "ninety-seven million, nine hundred eleven thousand, eight hundred ninety-two".