90770973 has 8 divisors (see below), whose sum is σ = 128147328. Its totient is φ = 56954304.

The previous prime is 90770971. The next prime is 90771049. The reversal of 90770973 is 37907709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90770973 - 2¹ = 90770971 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90770971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 889861 + ... + 889962.

It is an arithmetic number, because the mean of its divisors is an integer number (16018416).

Almost surely, 2^90770973 is an apocalyptic number.

It is an amenable number.

90770973 is a deficient number, since it is larger than the sum of its proper divisors (37376355).

90770973 is a wasteful number, since it uses less digits than its factorization.

90770973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779843.

The product of its (nonzero) digits is 83349, while the sum is 42.

The square root of 90770973 is about 9527.3801750534. The cubic root of 90770973 is about 449.4164831846.

The spelling of 90770973 in words is "ninety million, seven hundred seventy thousand, nine hundred seventy-three".