6426591 has 8 divisors (see below), whose sum is σ = 8941440. Its totient is φ = 4098072.

The previous prime is 6426587. The next prime is 6426593. The reversal of 6426591 is 1956246.

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

It is not a de Polignac number, because 6426591 - 2² = 6426587 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426593) 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, 46501 + ... + 46638.

It is an arithmetic number, because the mean of its divisors is an integer number (1117680).

Almost surely, 2^6426591 is an apocalyptic number.

6426591 is a deficient number, since it is larger than the sum of its proper divisors (2514849).

6426591 is a wasteful number, since it uses less digits than its factorization.

6426591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93165.

The product of its digits is 12960, while the sum is 33.

The square root of 6426591 is about 2535.0721883213. The cubic root of 6426591 is about 185.9203323980.

The spelling of 6426591 in words is "six million, four hundred twenty-six thousand, five hundred ninety-one".