39799313 has 4 divisors (see below), whose sum is σ = 39958128. Its totient is φ = 39640500.

The previous prime is 39799307. The next prime is 39799327. The reversal of 39799313 is 31399793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31399793 = 229 ⋅137117.

It is a cyclic number.

It is not a de Polignac number, because 39799313 - 2⁴ = 39799297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39799373) 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, 79031 + ... + 79532.

It is an arithmetic number, because the mean of its divisors is an integer number (9989532).

Almost surely, 2^39799313 is an apocalyptic number.

It is an amenable number.

39799313 is a deficient number, since it is larger than the sum of its proper divisors (158815).

39799313 is a wasteful number, since it uses less digits than its factorization.

39799313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158814.

The product of its digits is 137781, while the sum is 44.

The square root of 39799313 is about 6308.6696695896. The cubic root of 39799313 is about 341.4222802313.

The spelling of 39799313 in words is "thirty-nine million, seven hundred ninety-nine thousand, three hundred thirteen".