90628074 has 24 divisors (see below), whose sum is σ = 203133060. Its totient is φ = 29167488.

The previous prime is 90628067. The next prime is 90628099. The reversal of 90628074 is 47082609.

It can be written as a sum of positive squares in 2 ways, for example, as 90383049 + 245025 = 9507^2 + 495^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86287 + ... + 87330.

Almost surely, 2^90628074 is an apocalyptic number.

90628074 is an abundant number, since it is smaller than the sum of its proper divisors (112504986).

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

90628074 is a wasteful number, since it uses less digits than its factorization.

90628074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173654 (or 173651 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 90628074 is about 9519.8778353506. The cubic root of 90628074 is about 449.1805234054.

The spelling of 90628074 in words is "ninety million, six hundred twenty-eight thousand, seventy-four".