6992431 has 4 divisors (see below), whose sum is σ = 7011072. Its totient is φ = 6973792.

The previous prime is 6992429. The next prime is 6992443. The reversal of 6992431 is 1342996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6992431 - 2¹ = 6992429 is a prime.

It is a super-2 number, since 2×6992431² = 97788182579522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6992471) 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 3 ways as a sum of consecutive naturals, for example, 8746 + ... + 9511.

It is an arithmetic number, because the mean of its divisors is an integer number (1752768).

Almost surely, 2^6992431 is an apocalyptic number.

6992431 is a deficient number, since it is larger than the sum of its proper divisors (18641).

6992431 is a wasteful number, since it uses less digits than its factorization.

6992431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18640.

The product of its digits is 11664, while the sum is 34.

The square root of 6992431 is about 2644.3205176378. The cubic root of 6992431 is about 191.2241459063.

The spelling of 6992431 in words is "six million, nine hundred ninety-two thousand, four hundred thirty-one".