6990164 has 6 divisors (see below), whose sum is σ = 12232794. Its totient is φ = 3495080.

The previous prime is 6990161. The next prime is 6990187. The reversal of 6990164 is 4610996.

It can be written as a sum of positive squares in only one way, i.e., 6980164 + 10000 = 2642^2 + 100^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990161) by changing a digit.

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 as a sum of consecutive naturals, namely, 873767 + ... + 873774.

It is an arithmetic number, because the mean of its divisors is an integer number (2038799).

Almost surely, 2^6990164 is an apocalyptic number.

It is an amenable number.

6990164 is a deficient number, since it is larger than the sum of its proper divisors (5242630).

6990164 is a wasteful number, since it uses less digits than its factorization.

6990164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747545 (or 1747543 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 6990164 is about 2643.8918283470. The cubic root of 6990164 is about 191.2034782255.

The spelling of 6990164 in words is "six million, nine hundred ninety thousand, one hundred sixty-four".