31345706 has 16 divisors (see below), whose sum is σ = 56564160. Its totient is φ = 12726720.

The previous prime is 31345703. The next prime is 31345789. The reversal of 31345706 is 60754313.

It is not an unprimeable number, because it can be changed into a prime (31345703) 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 7 ways as a sum of consecutive naturals, for example, 58655 + ... + 59186.

It is an arithmetic number, because the mean of its divisors is an integer number (3535260).

Almost surely, 2^31345706 is an apocalyptic number.

31345706 is a deficient number, since it is larger than the sum of its proper divisors (25218454).

31345706 is a wasteful number, since it uses less digits than its factorization.

31345706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117869.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 31345706 is about 5598.7236045370. The cubic root of 31345706 is about 315.3014867809.

The spelling of 31345706 in words is "thirty-one million, three hundred forty-five thousand, seven hundred six".