90942812 has 12 divisors (see below), whose sum is σ = 159296256. Its totient is φ = 45429600.

The previous prime is 90942799. The next prime is 90942829. The reversal of 90942812 is 21824909.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 5273 + ... + 14480.

It is an arithmetic number, because the mean of its divisors is an integer number (13274688).

Almost surely, 2^90942812 is an apocalyptic number.

It is an amenable number.

90942812 is a deficient number, since it is larger than the sum of its proper divisors (68353444).

90942812 is a wasteful number, since it uses less digits than its factorization.

90942812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20908 (or 20906 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 90942812 is about 9536.3940774278. The cubic root of 90942812 is about 449.6999019714.

The spelling of 90942812 in words is "ninety million, nine hundred forty-two thousand, eight hundred twelve".