920879765 has 8 divisors (see below), whose sum is σ = 1190060088. Its totient is φ = 680034240.

The previous prime is 920879759. The next prime is 920879767. The reversal of 920879765 is 567978029.

920879765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 136375684 + 784504081 = 11678^2 + 28009^2 .

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

It is not a de Polignac number, because 920879765 - 2²² = 916685461 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 (920879767) 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, 7083626 + ... + 7083755.

It is an arithmetic number, because the mean of its divisors is an integer number (148757511).

Almost surely, 2^920879765 is an apocalyptic number.

It is an amenable number.

920879765 is a deficient number, since it is larger than the sum of its proper divisors (269180323).

920879765 is a wasteful number, since it uses less digits than its factorization.

920879765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14167399.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 920879765 is about 30346.0008073552. Note that the first 3 decimals coincide. The cubic root of 920879765 is about 972.8987454256.

The spelling of 920879765 in words is "nine hundred twenty million, eight hundred seventy-nine thousand, seven hundred sixty-five".