920842923 has 64 divisors (see below), whose sum is σ = 1735372800. Its totient is φ = 418296960.

The previous prime is 920842889. The next prime is 920842931. The reversal of 920842923 is 329248029.

It is a happy number.

It is not a de Polignac number, because 920842923 - 2⁸ = 920842667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (920842823) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48988 + ... + 65126.

It is an arithmetic number, because the mean of its divisors is an integer number (27115200).

Almost surely, 2^920842923 is an apocalyptic number.

920842923 is a deficient number, since it is larger than the sum of its proper divisors (814529877).

920842923 is a wasteful number, since it uses less digits than its factorization.

920842923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16192.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 920842923 is about 30345.3937690714. The cubic root of 920842923 is about 972.8857708713.

The spelling of 920842923 in words is "nine hundred twenty million, eight hundred forty-two thousand, nine hundred twenty-three".