6992664 has 64 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 1974144.

The previous prime is 6992653. The next prime is 6992681. The reversal of 6992664 is 4662996.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17782 + ... + 18170.

It is an arithmetic number, because the mean of its divisors is an integer number (315900).

Almost surely, 2^6992664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6992664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10108800).

6992664 is an abundant number, since it is smaller than the sum of its proper divisors (13224936).

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

6992664 is a wasteful number, since it uses less digits than its factorization.

6992664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 508 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 6992664 is about 2644.3645739572. The cubic root of 6992664 is about 191.2262698568.

The spelling of 6992664 in words is "six million, nine hundred ninety-two thousand, six hundred sixty-four".