31916007 has 12 divisors (see below), whose sum is σ = 46577440. Its totient is φ = 21057408.

The previous prime is 31915967. The next prime is 31916009. The reversal of 31916007 is 70061913.

It is not a de Polignac number, because 31916007 - 2¹⁰ = 31914983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31916009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17407 + ... + 19152.

Almost surely, 2^31916007 is an apocalyptic number.

31916007 is a deficient number, since it is larger than the sum of its proper divisors (14661433).

31916007 is a wasteful number, since it uses less digits than its factorization.

31916007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36662 (or 36659 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 31916007 is about 5649.4253690088. The cubic root of 31916007 is about 317.2021949739.

The spelling of 31916007 in words is "thirty-one million, nine hundred sixteen thousand, seven".