90127732 has 6 divisors (see below), whose sum is σ = 157723538. Its totient is φ = 45063864.

The previous prime is 90127721. The next prime is 90127769. The reversal of 90127732 is 23772109.

It can be written as a sum of positive squares in only one way, i.e., 89946256 + 181476 = 9484^2 + 426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90127694 and 90127703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265963 + ... + 11265970.

Almost surely, 2^90127732 is an apocalyptic number.

It is an amenable number.

90127732 is a deficient number, since it is larger than the sum of its proper divisors (67595806).

90127732 is a wasteful number, since it uses less digits than its factorization.

90127732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22531937 (or 22531935 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 90127732 is about 9493.5626610878. The cubic root of 90127732 is about 448.3523813978.

The spelling of 90127732 in words is "ninety million, one hundred twenty-seven thousand, seven hundred thirty-two".