31068970 has 8 divisors (see below), whose sum is σ = 55924164. Its totient is φ = 12427584.

The previous prime is 31068959. The next prime is 31068977. The reversal of 31068970 is 7986013.

It can be written as a sum of positive squares in 2 ways, for example, as 28718881 + 2350089 = 5359^2 + 1533^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31068977) 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, 1553439 + ... + 1553458.

Almost surely, 2^31068970 is an apocalyptic number.

31068970 is a deficient number, since it is larger than the sum of its proper divisors (24855194).

31068970 is a wasteful number, since it uses less digits than its factorization.

31068970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106904.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 31068970 is about 5573.9546105077. The cubic root of 31068970 is about 314.3708615222.

The spelling of 31068970 in words is "thirty-one million, sixty-eight thousand, nine hundred seventy".