39717130 has 8 divisors (see below), whose sum is σ = 71490852. Its totient is φ = 15886848.

The previous prime is 39717121. The next prime is 39717137. The reversal of 39717130 is 3171793.

It can be written as a sum of positive squares in 2 ways, for example, as 38526849 + 1190281 = 6207^2 + 1091^2 .

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 = 39717092 and 39717101.

It is not an unprimeable number, because it can be changed into a prime (39717137) 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, 1985847 + ... + 1985866.

Almost surely, 2^39717130 is an apocalyptic number.

39717130 is a deficient number, since it is larger than the sum of its proper divisors (31773722).

39717130 is a wasteful number, since it uses less digits than its factorization.

39717130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971720.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 39717130 is about 6302.1528067796. The cubic root of 39717130 is about 341.1871133340.

The spelling of 39717130 in words is "thirty-nine million, seven hundred seventeen thousand, one hundred thirty".