31396934 has 4 divisors (see below), whose sum is σ = 47095404. Its totient is φ = 15698466.

The previous prime is 31396933. The next prime is 31396957. The reversal of 31396934 is 43969313.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31396933) 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 as a sum of consecutive naturals, namely, 7849232 + ... + 7849235.

It is an arithmetic number, because the mean of its divisors is an integer number (11773851).

Almost surely, 2^31396934 is an apocalyptic number.

31396934 is a deficient number, since it is larger than the sum of its proper divisors (15698470).

31396934 is a wasteful number, since it uses less digits than its factorization.

31396934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15698469.

The product of its digits is 52488, while the sum is 38.

The square root of 31396934 is about 5603.2967081888. The cubic root of 31396934 is about 315.4731580712.

The spelling of 31396934 in words is "thirty-one million, three hundred ninety-six thousand, nine hundred thirty-four".