90742562 has 4 divisors (see below), whose sum is σ = 136113846. Its totient is φ = 45371280.

The previous prime is 90742559. The next prime is 90742573. The reversal of 90742562 is 26524709.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 84842521 + 5900041 = 9211^2 + 2429^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 22685639 + ... + 22685642.

Almost surely, 2^90742562 is an apocalyptic number.

90742562 is a deficient number, since it is larger than the sum of its proper divisors (45371284).

90742562 is a wasteful number, since it uses less digits than its factorization.

90742562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45371283.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 90742562 is about 9525.8890398744. The cubic root of 90742562 is about 449.3695896911.

The spelling of 90742562 in words is "ninety million, seven hundred forty-two thousand, five hundred sixty-two".