90247536 has 60 divisors (see below), whose sum is σ = 261289080. Its totient is φ = 29043840.

The previous prime is 90247529. The next prime is 90247537. The reversal of 90247536 is 63574209.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 90247536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90247537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6630 + ... + 14981.

It is an arithmetic number, because the mean of its divisors is an integer number (4354818).

Almost surely, 2^90247536 is an apocalyptic number.

It is an amenable number.

90247536 is an abundant number, since it is smaller than the sum of its proper divisors (171041544).

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

90247536 is a wasteful number, since it uses less digits than its factorization.

90247536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21654 (or 21645 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 90247536 is about 9499.8703149043. The cubic root of 90247536 is about 448.5509537453.

The spelling of 90247536 in words is "ninety million, two hundred forty-seven thousand, five hundred thirty-six".