90921352 has 16 divisors (see below), whose sum is σ = 170781660. Its totient is φ = 45379584.

The previous prime is 90921349. The next prime is 90921353. The reversal of 90921352 is 25312909.

It can be written as a sum of positive squares in 2 ways, for example, as 89000356 + 1920996 = 9434^2 + 1386^2 .

It is not an unprimeable number, because it can be changed into a prime (90921353) 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, 5233 + ... + 14464.

Almost surely, 2^90921352 is an apocalyptic number.

It is an amenable number.

90921352 is a deficient number, since it is larger than the sum of its proper divisors (79860308).

90921352 is a wasteful number, since it uses less digits than its factorization.

90921352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20280 (or 20276 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 90921352 is about 9535.2688478092. The cubic root of 90921352 is about 449.6645269231.

The spelling of 90921352 in words is "ninety million, nine hundred twenty-one thousand, three hundred fifty-two".