6990774 has 32 divisors (see below), whose sum is σ = 16920576. Its totient is φ = 1879680.

The previous prime is 6990761. The next prime is 6990799. The reversal of 6990774 is 4770996.

It is a super-2 number, since 2×6990774² = 97741842238152, which contains 22 as substring.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4182 + ... + 5609.

It is an arithmetic number, because the mean of its divisors is an integer number (528768).

Almost surely, 2^6990774 is an apocalyptic number.

6990774 is an abundant number, since it is smaller than the sum of its proper divisors (9929802).

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

6990774 is a wasteful number, since it uses less digits than its factorization.

6990774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9820.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 6990774 is about 2644.0071860719. The cubic root of 6990774 is about 191.2090398847.

The spelling of 6990774 in words is "six million, nine hundred ninety thousand, seven hundred seventy-four".