90723700 has 18 divisors (see below), whose sum is σ = 196870646. Its totient is φ = 36289440.

The previous prime is 90723697. The next prime is 90723749. The reversal of 90723700 is 732709.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 22924944 + 67798756 = 4788^2 + 8234^2 .

It is a congruent number.

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 in 5 ways as a sum of consecutive naturals, for example, 453519 + ... + 453718.

Almost surely, 2^90723700 is an apocalyptic number.

It is an amenable number.

90723700 is an abundant number, since it is smaller than the sum of its proper divisors (106146946).

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

90723700 is a wasteful number, since it uses less digits than its factorization.

90723700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907251 (or 907244 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 90723700 is about 9524.8989495952. The cubic root of 90723700 is about 449.3384517982.

The spelling of 90723700 in words is "ninety million, seven hundred twenty-three thousand, seven hundred".