90941812 has 12 divisors (see below), whose sum is σ = 171390436. Its totient is φ = 41973120.

The previous prime is 90941803. The next prime is 90941827. The reversal of 90941812 is 21814909.

It can be written as a sum of positive squares in 2 ways, for example, as 10588516 + 80353296 = 3254^2 + 8964^2 .

It is an alternating number because its digits alternate between odd and even.

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, 874389 + ... + 874492.

Almost surely, 2^90941812 is an apocalyptic number.

It is an amenable number.

90941812 is a deficient number, since it is larger than the sum of its proper divisors (80448624).

90941812 is a wasteful number, since it uses less digits than its factorization.

90941812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748898 (or 1748896 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 90941812 is about 9536.3416465645. The cubic root of 90941812 is about 449.6982536771.

The spelling of 90941812 in words is "ninety million, nine hundred forty-one thousand, eight hundred twelve".