90748660 has 12 divisors (see below), whose sum is σ = 190572228. Its totient is φ = 36299456.

The previous prime is 90748657. The next prime is 90748673. The reversal of 90748660 is 6684709.

It can be written as a sum of positive squares in 2 ways, for example, as 50069776 + 40678884 = 7076^2 + 6378^2 .

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, 2268697 + ... + 2268736.

It is an arithmetic number, because the mean of its divisors is an integer number (15881019).

Almost surely, 2^90748660 is an apocalyptic number.

It is an amenable number.

90748660 is an abundant number, since it is smaller than the sum of its proper divisors (99823568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90748660 is a wasteful number, since it uses less digits than its factorization.

90748660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537442 (or 4537440 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 90748660 is about 9526.2091096091. The cubic root of 90748660 is about 449.3796555093.

The spelling of 90748660 in words is "ninety million, seven hundred forty-eight thousand, six hundred sixty".