6412391 has 4 divisors (see below), whose sum is σ = 6428784. Its totient is φ = 6396000.

The previous prime is 6412387. The next prime is 6412409. The reversal of 6412391 is 1932146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6412391 - 2² = 6412387 is a prime.

It is a super-2 number, since 2×6412391² = 82237516673762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6412391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6412321) 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, 7595 + ... + 8396.

It is an arithmetic number, because the mean of its divisors is an integer number (1607196).

Almost surely, 2^6412391 is an apocalyptic number.

6412391 is a deficient number, since it is larger than the sum of its proper divisors (16393).

6412391 is a wasteful number, since it uses less digits than its factorization.

6412391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16392.

The product of its digits is 1296, while the sum is 26.

The square root of 6412391 is about 2532.2699303194. The cubic root of 6412391 is about 185.7832967813.

The spelling of 6412391 in words is "six million, four hundred twelve thousand, three hundred ninety-one".