90272804 has 12 divisors (see below), whose sum is σ = 158255244. Its totient is φ = 45057024.

The previous prime is 90272801. The next prime is 90272807. The reversal of 90272804 is 40827209.

It is an interprime number because it is at equal distance from previous prime (90272801) and next prime (90272807).

It can be written as a sum of positive squares in 2 ways, for example, as 57760000 + 32512804 = 7600^2 + 5702^2 .

It is not an unprimeable number, because it can be changed into a prime (90272801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17249 + ... + 21864.

It is an arithmetic number, because the mean of its divisors is an integer number (13187937).

Almost surely, 2^90272804 is an apocalyptic number.

It is an amenable number.

90272804 is a deficient number, since it is larger than the sum of its proper divisors (67982440).

90272804 is a wasteful number, since it uses less digits than its factorization.

90272804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39694 (or 39692 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 90272804 is about 9501.2001347198. The cubic root of 90272804 is about 448.5928124242.

The spelling of 90272804 in words is "ninety million, two hundred seventy-two thousand, eight hundred four".