90612654 has 32 divisors (see below), whose sum is σ = 198046080. Its totient is φ = 27410400.

The previous prime is 90612623. The next prime is 90612661. The reversal of 90612654 is 45621609.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61377 + ... + 62835.

It is an arithmetic number, because the mean of its divisors is an integer number (6188940).

Almost surely, 2^90612654 is an apocalyptic number.

90612654 is an abundant number, since it is smaller than the sum of its proper divisors (107433426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90612654 is a wasteful number, since it uses less digits than its factorization.

90612654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 90612654 is about 9519.0679165557. The cubic root of 90612654 is about 449.1550465443.

The spelling of 90612654 in words is "ninety million, six hundred twelve thousand, six hundred fifty-four".