31264463 has 4 divisors (see below), whose sum is σ = 31276488. Its totient is φ = 31252440.

The previous prime is 31264451. The next prime is 31264477. The reversal of 31264463 is 36446213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31264463 - 2¹² = 31260367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31264403) 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, 308 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (7819122).

Almost surely, 2^31264463 is an apocalyptic number.

31264463 is a deficient number, since it is larger than the sum of its proper divisors (12025).

31264463 is an equidigital number, since it uses as much as digits as its factorization.

31264463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024.

The product of its digits is 10368, while the sum is 29.

The square root of 31264463 is about 5591.4634041546. The cubic root of 31264463 is about 315.0288476142.

The spelling of 31264463 in words is "thirty-one million, two hundred sixty-four thousand, four hundred sixty-three".