90997852 has 12 divisors (see below), whose sum is σ = 173723256. Its totient is φ = 41362640.

The previous prime is 90997849. The next prime is 90997871. The reversal of 90997852 is 25879909.

It is a super-2 number, since 2×90997852² = 16561218137227808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90997796 and 90997805.

It is a congruent number.

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, 1034023 + ... + 1034110.

It is an arithmetic number, because the mean of its divisors is an integer number (14476938).

Almost surely, 2^90997852 is an apocalyptic number.

It is an amenable number.

90997852 is a deficient number, since it is larger than the sum of its proper divisors (82725404).

90997852 is a wasteful number, since it uses less digits than its factorization.

90997852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068148 (or 2068146 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 90997852 is about 9539.2794277136. The cubic root of 90997852 is about 449.7906054601.

The spelling of 90997852 in words is "ninety million, nine hundred ninety-seven thousand, eight hundred fifty-two".