6402137 has 4 divisors (see below), whose sum is σ = 7316736. Its totient is φ = 5487540.

The previous prime is 6402091. The next prime is 6402139. The reversal of 6402137 is 7312046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6402137 - 2¹⁸ = 6139993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6402139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457289 + ... + 457302.

It is an arithmetic number, because the mean of its divisors is an integer number (1829184).

Almost surely, 2^6402137 is an apocalyptic number.

It is an amenable number.

6402137 is a deficient number, since it is larger than the sum of its proper divisors (914599).

6402137 is an equidigital number, since it uses as much as digits as its factorization.

6402137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914598.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 6402137 is about 2530.2444545933. The cubic root of 6402137 is about 185.6842157852.

Subtracting 6402137 from its reverse (7312046), we obtain a palindrome (909909).

The spelling of 6402137 in words is "six million, four hundred two thousand, one hundred thirty-seven".