5309431 has 4 divisors (see below), whose sum is σ = 5341392. Its totient is φ = 5277472.

The previous prime is 5309413. The next prime is 5309441. The reversal of 5309431 is 1349035.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5309431 is a prime.

It is a super-2 number, since 2×5309431² = 56380115087522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5309396 and 5309405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5309441) 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, 15730 + ... + 16063.

It is an arithmetic number, because the mean of its divisors is an integer number (1335348).

Almost surely, 2^5309431 is an apocalyptic number.

5309431 is a deficient number, since it is larger than the sum of its proper divisors (31961).

5309431 is a wasteful number, since it uses less digits than its factorization.

5309431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31960.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 5309431 is about 2304.2202585690. The cubic root of 5309431 is about 174.4546944120.

The spelling of 5309431 in words is "five million, three hundred nine thousand, four hundred thirty-one".