6771961 has 16 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 5399568.

The previous prime is 6771953. The next prime is 6771971. The reversal of 6771961 is 1691776.

It is a cyclic number.

It is not a de Polignac number, because 6771961 - 2³ = 6771953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6771961.

It is not an unprimeable number, because it can be changed into a prime (6771911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7416 + ... + 8278.

It is an arithmetic number, because the mean of its divisors is an integer number (518400).

Almost surely, 2^6771961 is an apocalyptic number.

It is an amenable number.

6771961 is a deficient number, since it is larger than the sum of its proper divisors (1522439).

6771961 is a wasteful number, since it uses less digits than its factorization.

6771961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its digits is 15876, while the sum is 37.

The square root of 6771961 is about 2602.2991757290. The cubic root of 6771961 is about 189.1928921013.

The spelling of 6771961 in words is "six million, seven hundred seventy-one thousand, nine hundred sixty-one".