90864375 has 120 divisors (see below), whose sum is σ = 188039808. Its totient is φ = 38808000.

The previous prime is 90864373. The next prime is 90864383. The reversal of 90864375 is 57346809.

It is a happy number.

It is not a de Polignac number, because 90864375 - 2¹ = 90864373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90864373) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2113104 + ... + 2113146.

Almost surely, 2^90864375 is an apocalyptic number.

90864375 is an abundant number, since it is smaller than the sum of its proper divisors (97175433).

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

90864375 is a wasteful number, since it uses less digits than its factorization.

90864375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 90864375 is about 9532.2806819774. The cubic root of 90864375 is about 449.5705779997.

The spelling of 90864375 in words is "ninety million, eight hundred sixty-four thousand, three hundred seventy-five".