6791951 has 4 divisors (see below), whose sum is σ = 6798504. Its totient is φ = 6785400.

The previous prime is 6791933. The next prime is 6791963. The reversal of 6791951 is 1591976.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6791951 is a prime.

It is a super-2 number, since 2×6791951² = 92261196772802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6791971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340 + ... + 3921.

It is an arithmetic number, because the mean of its divisors is an integer number (1699626).

Almost surely, 2^6791951 is an apocalyptic number.

6791951 is the 1166-th centered decagonal number.

6791951 is a deficient number, since it is larger than the sum of its proper divisors (6553).

6791951 is a wasteful number, since it uses less digits than its factorization.

6791951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552.

The product of its digits is 17010, while the sum is 38.

The square root of 6791951 is about 2606.1371798123. The cubic root of 6791951 is about 189.3788673160.

The spelling of 6791951 in words is "six million, seven hundred ninety-one thousand, nine hundred fifty-one".