6402147 has 16 divisors (see below), whose sum is σ = 8851872. Its totient is φ = 4112640.

The previous prime is 6402139. The next prime is 6402157. The reversal of 6402147 is 7412046.

It is not a de Polignac number, because 6402147 - 2³ = 6402139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6402157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14997 + ... + 15417.

It is an arithmetic number, because the mean of its divisors is an integer number (553242).

Almost surely, 2^6402147 is an apocalyptic number.

6402147 is a deficient number, since it is larger than the sum of its proper divisors (2449725).

6402147 is a wasteful number, since it uses less digits than its factorization.

6402147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 6402147 is about 2530.2464306861. The cubic root of 6402147 is about 185.6843124634.

The spelling of 6402147 in words is "six million, four hundred two thousand, one hundred forty-seven".