9940827923 has 12 divisors (see below), whose sum is σ = 10967438880. Its totient is φ = 9003005856.

The previous prime is 9940827899. The next prime is 9940827961. The reversal of 9940827923 is 3297280499.

It is not a de Polignac number, because 9940827923 - 2⁶ = 9940827859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9940827983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545963 + ... + 563876.

It is an arithmetic number, because the mean of its divisors is an integer number (913953240).

Almost surely, 2^9940827923 is an apocalyptic number.

9940827923 is a deficient number, since it is larger than the sum of its proper divisors (1026610957).

9940827923 is a wasteful number, since it uses less digits than its factorization.

9940827923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109918 (or 1109905 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 9940827923 is about 99703.7006484714. The cubic root of 9940827923 is about 2150.1768683052.

The spelling of 9940827923 in words is "nine billion, nine hundred forty million, eight hundred twenty-seven thousand, nine hundred twenty-three".