6984400379 has 16 divisors (see below), whose sum is σ = 7734891744. Its totient is φ = 6253824000.

The previous prime is 6984400351. The next prime is 6984400393. The reversal of 6984400379 is 9730044896.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6984400379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6984400979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198137 + ... + 230709.

It is an arithmetic number, because the mean of its divisors is an integer number (483430734).

Almost surely, 2^6984400379 is an apocalyptic number.

6984400379 is a deficient number, since it is larger than the sum of its proper divisors (750491365).

6984400379 is a wasteful number, since it uses less digits than its factorization.

6984400379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32878.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 6984400379 is about 83572.7250901872. The cubic root of 6984400379 is about 1911.5091258201.

It can be divided in two parts, 69 and 84400379, that added together give a palindrome (84400448).

The spelling of 6984400379 in words is "six billion, nine hundred eighty-four million, four hundred thousand, three hundred seventy-nine".