3939621117 has 8 divisors (see below), whose sum is σ = 5301019680. Its totient is φ = 2602318320.

The previous prime is 3939621113. The next prime is 3939621131. The reversal of 3939621117 is 7111269393.

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

It is not a de Polignac number, because 3939621117 - 2² = 3939621113 is a prime.

It is a super-2 number, since 2×3939621117² = 31041229091024655378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939621113) 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, 6023559 + ... + 6024212.

It is an arithmetic number, because the mean of its divisors is an integer number (662627460).

Almost surely, 2^3939621117 is an apocalyptic number.

It is an amenable number.

3939621117 is a deficient number, since it is larger than the sum of its proper divisors (1361398563).

3939621117 is a wasteful number, since it uses less digits than its factorization.

3939621117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12047883.

The product of its digits is 61236, while the sum is 42.

The square root of 3939621117 is about 62766.4011792934. The cubic root of 3939621117 is about 1579.3733985182.

The spelling of 3939621117 in words is "three billion, nine hundred thirty-nine million, six hundred twenty-one thousand, one hundred seventeen".