6791878 has 4 divisors (see below), whose sum is σ = 10187820. Its totient is φ = 3395938.

The previous prime is 6791861. The next prime is 6791881. The reversal of 6791878 is 8781976.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6791878² = 92259213533768, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1697968 + ... + 1697971.

It is an arithmetic number, because the mean of its divisors is an integer number (2546955).

Almost surely, 2^6791878 is an apocalyptic number.

6791878 is a deficient number, since it is larger than the sum of its proper divisors (3395942).

6791878 is a wasteful number, since it uses less digits than its factorization.

6791878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395941.

The product of its digits is 169344, while the sum is 46.

The square root of 6791878 is about 2606.1231743722. The cubic root of 6791878 is about 189.3781888312.

It can be divided in two parts, 679187 and 8, that added together give a triangular number (679195 = T₁₁₆₅).

The spelling of 6791878 in words is "six million, seven hundred ninety-one thousand, eight hundred seventy-eight".