6402571 has 16 divisors (see below), whose sum is σ = 7603200. Its totient is φ = 5277888.

The previous prime is 6402547. The next prime is 6402577. The reversal of 6402571 is 1752046.

It is not a de Polignac number, because 6402571 - 2⁹ = 6402059 is a prime.

It is a Duffinian number.

6402571 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402577) 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, 26670 + ... + 26908.

It is an arithmetic number, because the mean of its divisors is an integer number (475200).

Almost surely, 2^6402571 is an apocalyptic number.

6402571 is a deficient number, since it is larger than the sum of its proper divisors (1200629).

6402571 is a wasteful number, since it uses less digits than its factorization.

6402571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 6402571 is about 2530.3302156043. The cubic root of 6402571 is about 185.6884115263.

The spelling of 6402571 in words is "six million, four hundred two thousand, five hundred seventy-one".