868920923 has 16 divisors (see below), whose sum is σ = 951722016. Its totient is φ = 788451840.

The previous prime is 868920911. The next prime is 868920929. The reversal of 868920923 is 329029868.

It is a cyclic number.

It is not a de Polignac number, because 868920923 - 2¹⁰ = 868919899 is a prime.

It is a super-3 number, since 3×868920923³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868920929) 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, 637763 + ... + 639123.

It is an arithmetic number, because the mean of its divisors is an integer number (59482626).

Almost surely, 2^868920923 is an apocalyptic number.

868920923 is a deficient number, since it is larger than the sum of its proper divisors (82801093).

868920923 is a wasteful number, since it uses less digits than its factorization.

868920923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 868920923 is about 29477.4646637054. The cubic root of 868920923 is about 954.2454216832.

The spelling of 868920923 in words is "eight hundred sixty-eight million, nine hundred twenty thousand, nine hundred twenty-three".