6779992 has 8 divisors (see below), whose sum is σ = 12712500. Its totient is φ = 3389992.

The previous prime is 6779987. The next prime is 6779999. The reversal of 6779992 is 2999776.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423742 + ... + 423757.

Almost surely, 2^6779992 is an apocalyptic number.

It is an amenable number.

6779992 is a deficient number, since it is larger than the sum of its proper divisors (5932508).

6779992 is a wasteful number, since it uses less digits than its factorization.

6779992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847505 (or 847501 counting only the distinct ones).

The product of its digits is 428652, while the sum is 49.

The square root of 6779992 is about 2603.8417770671. The cubic root of 6779992 is about 189.2676517305.

The spelling of 6779992 in words is "six million, seven hundred seventy-nine thousand, nine hundred ninety-two".