8453397492 has 72 divisors (see below), whose sum is σ = 23463288576. Its totient is φ = 2652041088.

The previous prime is 8453397481. The next prime is 8453397493. The reversal of 8453397492 is 2947933548.

8453397492 is a `hidden beast` number, since 8 + 453 + 39 + 74 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8453397493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239268 + ... + 272315.

It is an arithmetic number, because the mean of its divisors is an integer number (325879008).

Almost surely, 2^8453397492 is an apocalyptic number.

It is an amenable number.

8453397492 is an abundant number, since it is smaller than the sum of its proper divisors (15009891084).

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

8453397492 is a wasteful number, since it uses less digits than its factorization.

8453397492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511619 (or 511605 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 8453397492 is about 91942.3596173168. The cubic root of 8453397492 is about 2037.0910008560.

The spelling of 8453397492 in words is "eight billion, four hundred fifty-three million, three hundred ninety-seven thousand, four hundred ninety-two".