39798713 has 4 divisors (see below), whose sum is σ = 40151028. Its totient is φ = 39446400.

The previous prime is 39798691. The next prime is 39798719. The reversal of 39798713 is 31789793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1951609 + 37847104 = 1397^2 + 6152^2 .

It is a cyclic number.

It is not a de Polignac number, because 39798713 - 2¹² = 39794617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39798719) 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, 175988 + ... + 176213.

It is an arithmetic number, because the mean of its divisors is an integer number (10037757).

Almost surely, 2^39798713 is an apocalyptic number.

It is an amenable number.

39798713 is a deficient number, since it is larger than the sum of its proper divisors (352315).

39798713 is a wasteful number, since it uses less digits than its factorization.

39798713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352314.

The product of its digits is 285768, while the sum is 47.

The square root of 39798713 is about 6308.6221158031. The cubic root of 39798713 is about 341.4205645032.

The spelling of 39798713 in words is "thirty-nine million, seven hundred ninety-eight thousand, seven hundred thirteen".