8372397456 has 120 divisors (see below), whose sum is σ = 25414795224. Its totient is φ = 2562539520.

The previous prime is 8372397433. The next prime is 8372397457. The reversal of 8372397456 is 6547932738.

8372397456 is a `hidden beast` number, since 83 + 7 + 23 + 97 + 456 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 147456 + 8372250000 = 384^2 + 91500^2 .

It is a super-2 number, since 2×8372397456² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8372397457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58660 + ... + 142076.

Almost surely, 2^8372397456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8372397456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12707397612).

8372397456 is an abundant number, since it is smaller than the sum of its proper divisors (17042397768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8372397456 is a wasteful number, since it uses less digits than its factorization.

8372397456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83489 (or 83480 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The square root of 8372397456 is about 91500.8057669439. The cubic root of 8372397456 is about 2030.5636730537.

The spelling of 8372397456 in words is "eight billion, three hundred seventy-two million, three hundred ninety-seven thousand, four hundred fifty-six".