90847575 has 240 divisors, whose sum is σ = 226860480. Its totient is φ = 34836480.

The previous prime is 90847571. The next prime is 90847591. The reversal of 90847575 is 57574809.

It is not a de Polignac number, because 90847575 - 2² = 90847571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 90847575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90847571) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 3132661 + ... + 3132689.

It is an arithmetic number, because the mean of its divisors is an integer number (945252).

Almost surely, 2^90847575 is an apocalyptic number.

90847575 is an abundant number, since it is smaller than the sum of its proper divisors (136012905).

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

90847575 is a wasteful number, since it uses less digits than its factorization.

90847575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 90847575 is about 9531.3994250582. The cubic root of 90847575 is about 449.5428691158.

The spelling of 90847575 in words is "ninety million, eight hundred forty-seven thousand, five hundred seventy-five".