90749832 has 16 divisors (see below), whose sum is σ = 226874640. Its totient is φ = 30249936.

The previous prime is 90749831. The next prime is 90749837. The reversal of 90749832 is 23894709.

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

It is not an unprimeable number, because it can be changed into a prime (90749831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1890598 + ... + 1890645.

It is an arithmetic number, because the mean of its divisors is an integer number (14179665).

Almost surely, 2^90749832 is an apocalyptic number.

It is an amenable number.

90749832 is an abundant number, since it is smaller than the sum of its proper divisors (136124808).

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

90749832 is a wasteful number, since it uses less digits than its factorization.

90749832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781252 (or 3781248 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 90749832 is about 9526.2706239115. The cubic root of 90749832 is about 449.3815900491.

The spelling of 90749832 in words is "ninety million, seven hundred forty-nine thousand, eight hundred thirty-two".