6377961 has 4 divisors (see below), whose sum is σ = 8503952. Its totient is φ = 4251972.

The previous prime is 6377957. The next prime is 6377963. The reversal of 6377961 is 1697736.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6377961 - 2² = 6377957 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6377963) 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 in 3 ways as a sum of consecutive naturals, for example, 1062991 + ... + 1062996.

It is an arithmetic number, because the mean of its divisors is an integer number (2125988).

Almost surely, 2^6377961 is an apocalyptic number.

It is an amenable number.

6377961 is a deficient number, since it is larger than the sum of its proper divisors (2125991).

6377961 is a wasteful number, since it uses less digits than its factorization.

6377961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125990.

The product of its digits is 47628, while the sum is 39.

The square root of 6377961 is about 2525.4625318939. The cubic root of 6377961 is about 185.4501916291.

The spelling of 6377961 in words is "six million, three hundred seventy-seven thousand, nine hundred sixty-one".