965431 has 4 divisors (see below), whose sum is σ = 969912. Its totient is φ = 960952.

The previous prime is 965429. The next prime is 965443. The reversal of 965431 is 134569.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134569 = 37 ⋅3637.

It is a cyclic number.

It is not a de Polignac number, because 965431 - 2¹ = 965429 is a prime.

It is a super-2 number, since 2×965431² = 1864114031522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 965431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965401) 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, 1900 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (242478).

2⁹⁶⁵⁴³¹ is an apocalyptic number.

965431 is a deficient number, since it is larger than the sum of its proper divisors (4481).

965431 is a wasteful number, since it uses less digits than its factorization.

965431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480.

The product of its digits is 3240, while the sum is 28.

The square root of 965431 is about 982.5634839541. The cubic root of 965431 is about 98.8341610141.

The spelling of 965431 in words is "nine hundred sixty-five thousand, four hundred thirty-one".