8399056 has 10 divisors (see below), whose sum is σ = 16273202. Its totient is φ = 4199520.

The previous prime is 8399021. The next prime is 8399057. The reversal of 8399056 is 6509938.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 781456 = 2760^2 + 884^2 .

It is a super-2 number, since 2×8399056² = 141088283382272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8399057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262455 + ... + 262486.

Almost surely, 2^8399056 is an apocalyptic number.

It is an amenable number.

8399056 is a deficient number, since it is larger than the sum of its proper divisors (7874146).

8399056 is a wasteful number, since it uses less digits than its factorization.

8399056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524949 (or 524943 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 8399056 is about 2898.1124891902. The cubic root of 8399056 is about 203.2716561717.

The spelling of 8399056 in words is "eight million, three hundred ninety-nine thousand, fifty-six".