6420677 has 8 divisors (see below), whose sum is σ = 6627552. Its totient is φ = 6217200.

The previous prime is 6420599. The next prime is 6420683. The reversal of 6420677 is 7760246.

It is a happy number.

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 6420677 - 2¹⁰ = 6419653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420697) 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, 3302 + ... + 4872.

It is an arithmetic number, because the mean of its divisors is an integer number (828444).

Almost surely, 2^6420677 is an apocalyptic number.

6420677 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

6420677 is a deficient number, since it is larger than the sum of its proper divisors (206875).

6420677 is a wasteful number, since it uses less digits than its factorization.

6420677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 6420677 is about 2533.9054836359. The cubic root of 6420677 is about 185.8632845118.

The spelling of 6420677 in words is "six million, four hundred twenty thousand, six hundred seventy-seven".