90977213 has 8 divisors (see below), whose sum is σ = 96078528. Its totient is φ = 85971424.

The previous prime is 90977189. The next prime is 90977221. The reversal of 90977213 is 31277909.

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

It is not a de Polignac number, because 90977213 - 2¹⁰ = 90976189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90973213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21920 + ... + 25737.

It is an arithmetic number, because the mean of its divisors is an integer number (12009816).

Almost surely, 2^90977213 is an apocalyptic number.

It is an amenable number.

90977213 is a deficient number, since it is larger than the sum of its proper divisors (5101315).

90977213 is a wasteful number, since it uses less digits than its factorization.

90977213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47763.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 90977213 is about 9538.1975760623. The cubic root of 90977213 is about 449.7565975869.

The spelling of 90977213 in words is "ninety million, nine hundred seventy-seven thousand, two hundred thirteen".