31607942 has 8 divisors (see below), whose sum is σ = 47774232. Its totient is φ = 15683200.

The previous prime is 31607921. The next prime is 31607969. The reversal of 31607942 is 24970613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31607899 and 31607908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60059 + ... + 60582.

It is an arithmetic number, because the mean of its divisors is an integer number (5971779).

Almost surely, 2^31607942 is an apocalyptic number.

31607942 is a deficient number, since it is larger than the sum of its proper divisors (16166290).

31607942 is a wasteful number, since it uses less digits than its factorization.

31607942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120774.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 31607942 is about 5622.0940938408. The cubic root of 31607942 is about 316.1783096102.

The spelling of 31607942 in words is "thirty-one million, six hundred seven thousand, nine hundred forty-two".