90539774 has 16 divisors (see below), whose sum is σ = 147022512. Its totient is φ = 41568768.

The previous prime is 90539759. The next prime is 90539791. The reversal of 90539774 is 47793509.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4004 + ... + 14039.

It is an arithmetic number, because the mean of its divisors is an integer number (9188907).

Almost surely, 2^90539774 is an apocalyptic number.

90539774 is a deficient number, since it is larger than the sum of its proper divisors (56482738).

90539774 is a wasteful number, since it uses less digits than its factorization.

90539774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18251.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 90539774 is about 9515.2390406127. The cubic root of 90539774 is about 449.0345953770.

The spelling of 90539774 in words is "ninety million, five hundred thirty-nine thousand, seven hundred seventy-four".