6431493 has 4 divisors (see below), whose sum is σ = 8575328. Its totient is φ = 4287660.

The previous prime is 6431483. The next prime is 6431501. The reversal of 6431493 is 3941346.

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 not a de Polignac number, because 6431493 - 2⁵ = 6431461 is a prime.

It is a D-number.

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 6431493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431483) 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, 1071913 + ... + 1071918.

It is an arithmetic number, because the mean of its divisors is an integer number (2143832).

Almost surely, 2^6431493 is an apocalyptic number.

It is an amenable number.

6431493 is a deficient number, since it is larger than the sum of its proper divisors (2143835).

6431493 is a wasteful number, since it uses less digits than its factorization.

6431493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143834.

The product of its digits is 7776, while the sum is 30.

The square root of 6431493 is about 2536.0388403966. The cubic root of 6431493 is about 185.9675917637.

The spelling of 6431493 in words is "six million, four hundred thirty-one thousand, four hundred ninety-three".