8423953931 has 16 divisors (see below), whose sum is σ = 8807369760. Its totient is φ = 8049550080.

The previous prime is 8423953927. The next prime is 8423953933. The reversal of 8423953931 is 1393593248.

It is a cyclic number.

It is not a de Polignac number, because 8423953931 - 2² = 8423953927 is a prime.

It is a super-2 number, since 2×8423953931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8423953933) 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, 1394225 + ... + 1400253.

It is an arithmetic number, because the mean of its divisors is an integer number (550460610).

Almost surely, 2^8423953931 is an apocalyptic number.

8423953931 is a deficient number, since it is larger than the sum of its proper divisors (383415829).

8423953931 is a wasteful number, since it uses less digits than its factorization.

8423953931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766.

The product of its digits is 699840, while the sum is 47.

The square root of 8423953931 is about 91782.1002755984. The cubic root of 8423953931 is about 2034.7231566441.

The spelling of 8423953931 in words is "eight billion, four hundred twenty-three million, nine hundred fifty-three thousand, nine hundred thirty-one".