6398477 has 8 divisors (see below), whose sum is σ = 6852600. Its totient is φ = 5953024.

The previous prime is 6398471. The next prime is 6398479. The reversal of 6398477 is 7748936.

6398477 = 94² + 95² + ... + 271².

It can be written as a sum of positive squares in 4 ways, for example, as 2886601 + 3511876 = 1699^2 + 1874^2 .

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 6398477 - 2⁴ = 6398461 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 (6398471) 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, 602 + ... + 3627.

It is an arithmetic number, because the mean of its divisors is an integer number (856575).

Almost surely, 2^6398477 is an apocalyptic number.

It is an amenable number.

6398477 is a deficient number, since it is larger than the sum of its proper divisors (454123).

6398477 is a wasteful number, since it uses less digits than its factorization.

6398477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335.

The product of its digits is 254016, while the sum is 44.

The square root of 6398477 is about 2529.5211009201. The cubic root of 6398477 is about 185.6488248016.

The spelling of 6398477 in words is "six million, three hundred ninety-eight thousand, four hundred seventy-seven".