90351738 has 12 divisors (see below), whose sum is σ = 195762138. Its totient is φ = 30117240.

The previous prime is 90351731. The next prime is 90351739. The reversal of 90351738 is 83715309.

It can be written as a sum of positive squares in only one way, i.e., 88679889 + 1671849 = 9417^2 + 1293^2 .

It is not an unprimeable number, because it can be changed into a prime (90351731) 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 5 ways as a sum of consecutive naturals, for example, 2509753 + ... + 2509788.

Almost surely, 2^90351738 is an apocalyptic number.

90351738 is an abundant number, since it is smaller than the sum of its proper divisors (105410400).

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

90351738 is a wasteful number, since it uses less digits than its factorization.

90351738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019549 (or 5019546 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 90351738 is about 9505.3531233721. The cubic root of 90351738 is about 448.7235232916.

The spelling of 90351738 in words is "ninety million, three hundred fifty-one thousand, seven hundred thirty-eight".