6990872 has 32 divisors (see below), whose sum is σ = 15467520. Its totient is φ = 2898720.

The previous prime is 6990871. The next prime is 6990881. The reversal of 6990872 is 2780996.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278 + ... + 3749.

It is an arithmetic number, because the mean of its divisors is an integer number (483360).

Almost surely, 2^6990872 is an apocalyptic number.

6990872 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6990872 is an abundant number, since it is smaller than the sum of its proper divisors (8476648).

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

6990872 is a wasteful number, since it uses less digits than its factorization.

6990872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071 (or 4067 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 6990872 is about 2644.0257184831. The cubic root of 6990872 is about 191.2099333670.

The spelling of 6990872 in words is "six million, nine hundred ninety thousand, eight hundred seventy-two".