31344723 has 12 divisors (see below), whose sum is σ = 46239648. Its totient is φ = 20451600.

The previous prime is 31344697. The next prime is 31344727. The reversal of 31344723 is 32744313.

It is not a de Polignac number, because 31344723 - 2¹² = 31340627 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (31344727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36628 + ... + 37473.

It is an arithmetic number, because the mean of its divisors is an integer number (3853304).

Almost surely, 2^31344723 is an apocalyptic number.

31344723 is a deficient number, since it is larger than the sum of its proper divisors (14894925).

31344723 is a wasteful number, since it uses less digits than its factorization.

31344723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74154 (or 74151 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 31344723 is about 5598.6358159823. The cubic root of 31344723 is about 315.2981907994.

The spelling of 31344723 in words is "thirty-one million, three hundred forty-four thousand, seven hundred twenty-three".