6409157 has 16 divisors (see below), whose sum is σ = 7050240. Its totient is φ = 5808000.

The previous prime is 6409141. The next prime is 6409163. The reversal of 6409157 is 7519046.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6409157 - 2⁴ = 6409141 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 (6409127) 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, 63407 + ... + 63507.

It is an arithmetic number, because the mean of its divisors is an integer number (440640).

Almost surely, 2^6409157 is an apocalyptic number.

It is an amenable number.

6409157 is a deficient number, since it is larger than the sum of its proper divisors (641083).

6409157 is a wasteful number, since it uses less digits than its factorization.

6409157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 6409157 is about 2531.6312922699. The cubic root of 6409157 is about 185.7520591241.

The spelling of 6409157 in words is "six million, four hundred nine thousand, one hundred fifty-seven".