6402207 has 8 divisors (see below), whose sum is σ = 9755776. Its totient is φ = 3658392.

The previous prime is 6402203. The next prime is 6402247. The reversal of 6402207 is 7022046.

It is a happy number.

6402207 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6402207 - 2² = 6402203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 304867 = 6402207 / (6 + 4 + 0 + 2 + 2 + 0 + 7).

It is a Duffinian number.

6402207 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402203) 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, 152413 + ... + 152454.

It is an arithmetic number, because the mean of its divisors is an integer number (1219472).

Almost surely, 2^6402207 is an apocalyptic number.

6402207 is a deficient number, since it is larger than the sum of its proper divisors (3353569).

6402207 is a wasteful number, since it uses less digits than its factorization.

6402207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304877.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 6402207 is about 2530.2582872110. The cubic root of 6402207 is about 185.6848925305.

The spelling of 6402207 in words is "six million, four hundred two thousand, two hundred seven".