6430431 has 16 divisors (see below), whose sum is σ = 10137600. Its totient is φ = 3547488.

The previous prime is 6430429. The next prime is 6430433. The reversal of 6430431 is 1340346.

It is an interprime number because it is at equal distance from previous prime (6430429) and next prime (6430433).

It is not a de Polignac number, because 6430431 - 2¹ = 6430429 is a prime.

It is a super-2 number, since 2×6430431² = 82700885691522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 6430398 and 6430407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6430433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4671 + ... + 5888.

It is an arithmetic number, because the mean of its divisors is an integer number (633600).

Almost surely, 2^6430431 is an apocalyptic number.

6430431 is a deficient number, since it is larger than the sum of its proper divisors (3707169).

6430431 is a wasteful number, since it uses less digits than its factorization.

6430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10598.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 6430431 is about 2535.8294501011. The cubic root of 6430431 is about 185.9573552368.

Adding to 6430431 its reverse (1340346), we get a palindrome (7770777).

The spelling of 6430431 in words is "six million, four hundred thirty thousand, four hundred thirty-one".