90771232 has 12 divisors (see below), whose sum is σ = 178705926. Its totient is φ = 45385600.

The previous prime is 90771229. The next prime is 90771251. The reversal of 90771232 is 23217709.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 35952016 = 7404^2 + 5996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90771194 and 90771203.

It is an unprimeable number.

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, 1418269 + ... + 1418332.

Almost surely, 2^90771232 is an apocalyptic number.

It is an amenable number.

90771232 is a deficient number, since it is larger than the sum of its proper divisors (87934694).

90771232 is a wasteful number, since it uses less digits than its factorization.

90771232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836611 (or 2836603 counting only the distinct ones).

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

The square root of 90771232 is about 9527.3937674476. The cubic root of 90771232 is about 449.4169106295.

The spelling of 90771232 in words is "ninety million, seven hundred seventy-one thousand, two hundred thirty-two".