6992720 has 40 divisors (see below), whose sum is σ = 18582144. Its totient is φ = 2397312.

The previous prime is 6992693. The next prime is 6992731. The reversal of 6992720 is 272996.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

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 7 ways as a sum of consecutive naturals, for example, 5684 + ... + 6803.

Almost surely, 2^6992720 is an apocalyptic number.

It is an amenable number.

6992720 is an abundant number, since it is smaller than the sum of its proper divisors (11589424).

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

6992720 is a wasteful number, since it uses less digits than its factorization.

6992720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12507 (or 12501 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 6992720 is about 2644.3751624911. The cubic root of 6992720 is about 191.2267803271.

The spelling of 6992720 in words is "six million, nine hundred ninety-two thousand, seven hundred twenty".