90810336 has 24 divisors (see below), whose sum is σ = 238377384. Its totient is φ = 30270080.

The previous prime is 90810331. The next prime is 90810337. The reversal of 90810336 is 63301809.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90810331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472875 + ... + 473066.

It is an arithmetic number, because the mean of its divisors is an integer number (9932391).

Almost surely, 2^90810336 is an apocalyptic number.

90810336 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

90810336 is an abundant number, since it is smaller than the sum of its proper divisors (147567048).

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

90810336 is a wasteful number, since it uses less digits than its factorization.

90810336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945954 (or 945946 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 90810336 is about 9529.4457341442. The cubic root of 90810336 is about 449.4814372255.

The spelling of 90810336 in words is "ninety million, eight hundred ten thousand, three hundred thirty-six".