90766556 has 12 divisors (see below), whose sum is σ = 165747792. Its totient is φ = 43410048.

The previous prime is 90766547. The next prime is 90766601. The reversal of 90766556 is 65566709.

It is a super-2 number, since 2×90766556² = 16477135376202272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493205 + ... + 493388.

It is an arithmetic number, because the mean of its divisors is an integer number (13812316).

Almost surely, 2^90766556 is an apocalyptic number.

It is an amenable number.

90766556 is a deficient number, since it is larger than the sum of its proper divisors (74981236).

90766556 is a wasteful number, since it uses less digits than its factorization.

90766556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986620 (or 986618 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 90766556 is about 9527.1483666415. The cubic root of 90766556 is about 449.4091933916.

The spelling of 90766556 in words is "ninety million, seven hundred sixty-six thousand, five hundred fifty-six".