90213056 has 14 divisors (see below), whose sum is σ = 179016660. Its totient is φ = 45106496.

The previous prime is 90213043. The next prime is 90213059. The reversal of 90213056 is 65031209.

It is not an unprimeable number, because it can be changed into a prime (90213059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704726 + ... + 704853.

Almost surely, 2^90213056 is an apocalyptic number.

It is an amenable number.

90213056 is a deficient number, since it is larger than the sum of its proper divisors (88803604).

90213056 is a wasteful number, since it uses less digits than its factorization.

90213056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409591 (or 1409581 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 90213056 is about 9498.0553799186. The cubic root of 90213056 is about 448.4938219659.

The spelling of 90213056 in words is "ninety million, two hundred thirteen thousand, fifty-six".