90423832 has 8 divisors (see below), whose sum is σ = 169544700. Its totient is φ = 45211912.

The previous prime is 90423821. The next prime is 90423857. The reversal of 90423832 is 23832409.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 90423794 and 90423803.

It is a congruent number.

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, 5651482 + ... + 5651497.

Almost surely, 2^90423832 is an apocalyptic number.

It is an amenable number.

90423832 is a deficient number, since it is larger than the sum of its proper divisors (79120868).

90423832 is a wasteful number, since it uses less digits than its factorization.

90423832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11302985 (or 11302981 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 90423832 is about 9509.1446513343. The cubic root of 90423832 is about 448.8428409488.

The spelling of 90423832 in words is "ninety million, four hundred twenty-three thousand, eight hundred thirty-two".