90651244 has 12 divisors (see below), whose sum is σ = 158760000. Its totient is φ = 45291248.

The previous prime is 90651241. The next prime is 90651269. The reversal of 90651244 is 44215609.

It is not an unprimeable number, because it can be changed into a prime (90651241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119 + ... + 13630.

It is an arithmetic number, because the mean of its divisors is an integer number (13230000).

Almost surely, 2^90651244 is an apocalyptic number.

It is an amenable number.

90651244 is a deficient number, since it is larger than the sum of its proper divisors (68108756).

90651244 is a wasteful number, since it uses less digits than its factorization.

90651244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17192 (or 17190 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 90651244 is about 9521.0946849614. The cubic root of 90651244 is about 449.2187993518.

The spelling of 90651244 in words is "ninety million, six hundred fifty-one thousand, two hundred forty-four".