90739408 has 10 divisors (see below), whose sum is σ = 175807634. Its totient is φ = 45369696.

The previous prime is 90739403. The next prime is 90739409. The reversal of 90739408 is 80493709.

It can be written as a sum of positive squares in only one way, i.e., 78712384 + 12027024 = 8872^2 + 3468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90739403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2835591 + ... + 2835622.

Almost surely, 2^90739408 is an apocalyptic number.

It is an amenable number.

90739408 is a deficient number, since it is larger than the sum of its proper divisors (85068226).

90739408 is a wasteful number, since it uses less digits than its factorization.

90739408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671221 (or 5671215 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 90739408 is about 9525.7234895834. The cubic root of 90739408 is about 449.3643832842.

It can be divided in two parts, 9073 and 9408, that added together give a palindrome (18481).

The spelling of 90739408 in words is "ninety million, seven hundred thirty-nine thousand, four hundred eight".