6406977 has 8 divisors (see below), whose sum is σ = 9045216. Its totient is φ = 4020032.

The previous prime is 6406973. The next prime is 6406997. The reversal of 6406977 is 7796046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6406977 - 2² = 6406973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6406973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62763 + ... + 62864.

It is an arithmetic number, because the mean of its divisors is an integer number (1130652).

Almost surely, 2^6406977 is an apocalyptic number.

It is an amenable number.

6406977 is a deficient number, since it is larger than the sum of its proper divisors (2638239).

6406977 is a wasteful number, since it uses less digits than its factorization.

6406977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125647.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 6406977 is about 2531.2007032237. The cubic root of 6406977 is about 185.7309962704.

It can be divided in two parts, 64069 and 77, that added together give a palindrome (64146).

The spelling of 6406977 in words is "six million, four hundred six thousand, nine hundred seventy-seven".