6428199 has 8 divisors (see below), whose sum is σ = 8770432. Its totient is φ = 4185720.

The previous prime is 6428197. The next prime is 6428207. The reversal of 6428199 is 9918246.

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

It is not a de Polignac number, because 6428199 - 2¹ = 6428197 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428197) 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, 24787 + ... + 25044.

It is an arithmetic number, because the mean of its divisors is an integer number (1096304).

Almost surely, 2^6428199 is an apocalyptic number.

6428199 is a deficient number, since it is larger than the sum of its proper divisors (2342233).

6428199 is a wasteful number, since it uses less digits than its factorization.

6428199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49877.

The product of its digits is 31104, while the sum is 39.

The square root of 6428199 is about 2535.3893192171. The cubic root of 6428199 is about 185.9358375060.

The spelling of 6428199 in words is "six million, four hundred twenty-eight thousand, one hundred ninety-nine".