90864250 has 64 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 34440000.

The previous prime is 90864247. The next prime is 90864311. The reversal of 90864250 is 5246809.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 601675 + ... + 601825.

It is an arithmetic number, because the mean of its divisors is an integer number (2800980).

Almost surely, 2^90864250 is an apocalyptic number.

90864250 is a deficient number, since it is larger than the sum of its proper divisors (88398470).

90864250 is a wasteful number, since it uses less digits than its factorization.

90864250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 90864250 is about 9532.2741253071. The cubic root of 90864250 is about 449.5703718450.

The spelling of 90864250 in words is "ninety million, eight hundred sixty-four thousand, two hundred fifty".