920779827 has 16 divisors (see below), whose sum is σ = 1340115840. Its totient is φ = 557715200.

The previous prime is 920779799. The next prime is 920779829. The reversal of 920779827 is 728977029.

It is a cyclic number.

It is not a de Polignac number, because 920779827 - 2¹⁵ = 920747059 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 920779827.

It is not an unprimeable number, because it can be changed into a prime (920779829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54952 + ... + 69722.

It is an arithmetic number, because the mean of its divisors is an integer number (83757240).

Almost surely, 2^920779827 is an apocalyptic number.

920779827 is a deficient number, since it is larger than the sum of its proper divisors (419336013).

920779827 is a wasteful number, since it uses less digits than its factorization.

920779827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16674.

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 920779827 is about 30344.3541206597. The cubic root of 920779827 is about 972.8635497080.

The spelling of 920779827 in words is "nine hundred twenty million, seven hundred seventy-nine thousand, eight hundred twenty-seven".