964431 has 12 divisors (see below), whose sum is σ = 1500408. Its totient is φ = 593424.

The previous prime is 964423. The next prime is 964433. The reversal of 964431 is 134469.

It is not a de Polignac number, because 964431 - 2³ = 964423 is a prime.

It is a super-2 number, since 2×964431² = 1860254307522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 964395 and 964404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4005 + ... + 4238.

It is an arithmetic number, because the mean of its divisors is an integer number (125034).

2⁹⁶⁴⁴³¹ is an apocalyptic number.

964431 is a deficient number, since it is larger than the sum of its proper divisors (535977).

964431 is a wasteful number, since it uses less digits than its factorization.

964431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262 (or 8259 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 964431 is about 982.0544791405. The cubic root of 964431 is about 98.8000248597.

The spelling of 964431 in words is "nine hundred sixty-four thousand, four hundred thirty-one".