8423315397 has 48 divisors (see below), whose sum is σ = 15082284672. Its totient is φ = 4419671040.

The previous prime is 8423315389. The next prime is 8423315399. The reversal of 8423315397 is 7935133248.

8423315397 is a `hidden beast` number, since 84 + 2 + 3 + 31 + 539 + 7 = 666.

It is not a de Polignac number, because 8423315397 - 2³ = 8423315389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423315399) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52003 + ... + 139824.

It is an arithmetic number, because the mean of its divisors is an integer number (314214264).

Almost surely, 2^8423315397 is an apocalyptic number.

It is an amenable number.

8423315397 is a deficient number, since it is larger than the sum of its proper divisors (6658969275).

8423315397 is a wasteful number, since it uses less digits than its factorization.

8423315397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191898 (or 191895 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 8423315397 is about 91778.6216773819. The cubic root of 8423315397 is about 2034.6717448108.

The spelling of 8423315397 in words is "eight billion, four hundred twenty-three million, three hundred fifteen thousand, three hundred ninety-seven".