6992872 has 8 divisors (see below), whose sum is σ = 13111650. Its totient is φ = 3496432.

The previous prime is 6992849. The next prime is 6992879. The reversal of 6992872 is 2782996.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4639716 + 2353156 = 2154^2 + 1534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6992879) 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 as a sum of consecutive naturals, namely, 437047 + ... + 437062.

Almost surely, 2^6992872 is an apocalyptic number.

It is an amenable number.

6992872 is a deficient number, since it is larger than the sum of its proper divisors (6118778).

6992872 is a wasteful number, since it uses less digits than its factorization.

6992872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874115 (or 874111 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 6992872 is about 2644.4039025837. The cubic root of 6992872 is about 191.2281658757.

The spelling of 6992872 in words is "six million, nine hundred ninety-two thousand, eight hundred seventy-two".