7056399 has 16 divisors (see below), whose sum is σ = 10902272. Its totient is φ = 3976128.

The previous prime is 7056383. The next prime is 7056403. The reversal of 7056399 is 9936507.

It is not a de Polignac number, because 7056399 - 2⁴ = 7056383 is a prime.

It is a Duffinian number.

7056399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7056349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769 + ... + 3834.

It is an arithmetic number, because the mean of its divisors is an integer number (681392).

Almost surely, 2^7056399 is an apocalyptic number.

7056399 is a deficient number, since it is larger than the sum of its proper divisors (3845873).

7056399 is a wasteful number, since it uses less digits than its factorization.

7056399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 7056399 is about 2656.3883375742. The cubic root of 7056399 is about 191.8054942115.

The spelling of 7056399 in words is "seven million, fifty-six thousand, three hundred ninety-nine".