920879716 has 9 divisors (see below), whose sum is σ = 1611645721. Its totient is φ = 460409512.

The previous prime is 920879711. The next prime is 920879723. The reversal of 920879716 is 617978029.

It is a happy number.

The square root of 920879716 is 30346.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 852056100 + 68823616 = 29190^2 + 8296^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 920879716.

It is not an unprimeable number, because it can be changed into a prime (920879711) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 53106 + ... + 68278.

Almost surely, 2^920879716 is an apocalyptic number.

920879716 is the 30346-th square number.

It is an amenable number.

920879716 is a deficient number, since it is larger than the sum of its proper divisors (690766005).

920879716 is an frugal number, since it uses more digits than its factorization.

920879716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30350 (or 15175 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 49.

The cubic root of 920879716 is about 972.8987281696.

Multiplying 920879716 by its sum of digits (49), we get a square (45123106084 = 212422²).

The spelling of 920879716 in words is "nine hundred twenty million, eight hundred seventy-nine thousand, seven hundred sixteen".