90612884 has 6 divisors (see below), whose sum is σ = 158572554. Its totient is φ = 45306440.

The previous prime is 90612871. The next prime is 90612901. The reversal of 90612884 is 48821609.

It can be written as a sum of positive squares in only one way, i.e., 45427600 + 45185284 = 6740^2 + 6722^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11326607 + ... + 11326614.

It is an arithmetic number, because the mean of its divisors is an integer number (26428759).

Almost surely, 2^90612884 is an apocalyptic number.

It is an amenable number.

90612884 is a deficient number, since it is larger than the sum of its proper divisors (67959670).

90612884 is a wasteful number, since it uses less digits than its factorization.

90612884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22653225 (or 22653223 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 90612884 is about 9519.0799975628. The cubic root of 90612884 is about 449.1554265706.

The spelling of 90612884 in words is "ninety million, six hundred twelve thousand, eight hundred eighty-four".