1939699317 has 8 divisors (see below), whose sum is σ = 2610436896. Its totient is φ = 1281047312.

The previous prime is 1939699313. The next prime is 1939699343. The reversal of 1939699317 is 7139969391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1939699317 - 2² = 1939699313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939699313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021018 + ... + 3021659.

It is an arithmetic number, because the mean of its divisors is an integer number (326304612).

Almost surely, 2^1939699317 is an apocalyptic number.

It is an amenable number.

1939699317 is a deficient number, since it is larger than the sum of its proper divisors (670737579).

1939699317 is a wasteful number, since it uses less digits than its factorization.

1939699317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042787.

The product of its digits is 2480058, while the sum is 57.

The square root of 1939699317 is about 44042.0176308943. The cubic root of 1939699317 is about 1247.1292664515.

The spelling of 1939699317 in words is "one billion, nine hundred thirty-nine million, six hundred ninety-nine thousand, three hundred seventeen".