90739388 has 6 divisors (see below), whose sum is σ = 158793936. Its totient is φ = 45369692.

The previous prime is 90739379. The next prime is 90739399. The reversal of 90739388 is 88393709.

It is a super-2 number, since 2×90739388² = 16467273069229088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 11342420 + ... + 11342427.

It is an arithmetic number, because the mean of its divisors is an integer number (26465656).

Almost surely, 2^90739388 is an apocalyptic number.

It is an amenable number.

90739388 is a deficient number, since it is larger than the sum of its proper divisors (68054548).

90739388 is a wasteful number, since it uses less digits than its factorization.

90739388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22684851 (or 22684849 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 90739388 is about 9525.7224397943. The cubic root of 90739388 is about 449.3643502692.

The spelling of 90739388 in words is "ninety million, seven hundred thirty-nine thousand, three hundred eighty-eight".