39970017 has 10 divisors (see below), whose sum is σ = 59708418. Its totient is φ = 26646624.

The previous prime is 39970013. The next prime is 39970019. The reversal of 39970017 is 71007993.

It can be written as a sum of positive squares in only one way, i.e., 37015056 + 2954961 = 6084^2 + 1719^2 .

It is not a de Polignac number, because 39970017 - 2² = 39970013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39970013) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 246648 + ... + 246809.

Almost surely, 2^39970017 is an apocalyptic number.

It is an amenable number.

39970017 is a deficient number, since it is larger than the sum of its proper divisors (19738401).

39970017 is an equidigital number, since it uses as much as digits as its factorization.

39970017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493469 (or 493460 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 39970017 is about 6322.1845117016. The cubic root of 39970017 is about 341.9097176279.

The spelling of 39970017 in words is "thirty-nine million, nine hundred seventy thousand, seventeen".