8457392 has 20 divisors (see below), whose sum is σ = 16483320. Its totient is φ = 4203648.

The previous prime is 8457391. The next prime is 8457401. The reversal of 8457392 is 2937548.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 8 + 4⁸ + 5⁵ + 7 + 3³ + 9² + 2²³ .

It is not an unprimeable number, because it can be changed into a prime (8457391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388 + ... + 4340.

It is an arithmetic number, because the mean of its divisors is an integer number (824166).

Almost surely, 2^8457392 is an apocalyptic number.

It is an amenable number.

8457392 is a deficient number, since it is larger than the sum of its proper divisors (8025928).

8457392 is a wasteful number, since it uses less digits than its factorization.

8457392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140 (or 3134 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 8457392 is about 2908.1595554577. The cubic root of 8457392 is about 203.7411814468.

The spelling of 8457392 in words is "eight million, four hundred fifty-seven thousand, three hundred ninety-two".