90943236 has 36 divisors (see below), whose sum is σ = 238401072. Its totient is φ = 30314088.

The previous prime is 90943231. The next prime is 90943247. The reversal of 90943236 is 63234909.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 90943236.

It is not an unprimeable number, because it can be changed into a prime (90943231) 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, 45810 + ... + 47753.

It is an arithmetic number, because the mean of its divisors is an integer number (6622252).

Almost surely, 2^90943236 is an apocalyptic number.

It is an amenable number.

90943236 is an abundant number, since it is smaller than the sum of its proper divisors (147457836).

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

90943236 is a wasteful number, since it uses less digits than its factorization.

90943236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93582 (or 93568 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 90943236 is about 9536.4163080268. The cubic root of 90943236 is about 449.7006008445.

The spelling of 90943236 in words is "ninety million, nine hundred forty-three thousand, two hundred thirty-six".