6494431 has 4 divisors (see below), whose sum is σ = 6503112. Its totient is φ = 6485752.

The previous prime is 6494417. The next prime is 6494443. The reversal of 6494431 is 1344946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1344946 = 2 ⋅672473.

It is a cyclic number.

It is not a de Polignac number, because 6494431 - 2⁹ = 6493919 is a prime.

It is a super-2 number, since 2×6494431² = 84355268027522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 6494393 and 6494402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6494491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3100 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (1625778).

Almost surely, 2^6494431 is an apocalyptic number.

6494431 is a deficient number, since it is larger than the sum of its proper divisors (8681).

6494431 is an equidigital number, since it uses as much as digits as its factorization.

6494431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8680.

The product of its digits is 10368, while the sum is 31.

The square root of 6494431 is about 2548.4173520050. The cubic root of 6494431 is about 186.5722442669.

The spelling of 6494431 in words is "six million, four hundred ninety-four thousand, four hundred thirty-one".