3920859 has 16 divisors (see below), whose sum is σ = 6115200. Its totient is φ = 2476008.

The previous prime is 3920857. The next prime is 3920867. The reversal of 3920859 is 9580293.

It is not a de Polignac number, because 3920859 - 2¹ = 3920857 is a prime.

3920859 is a lucky number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3309 + ... + 4334.

It is an arithmetic number, because the mean of its divisors is an integer number (382200).

Almost surely, 2^3920859 is an apocalyptic number.

3920859 is a deficient number, since it is larger than the sum of its proper divisors (2194341).

3920859 is a wasteful number, since it uses less digits than its factorization.

3920859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7671 (or 7665 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 3920859 is about 1980.1159056985. The cubic root of 3920859 is about 157.6862196463.

The spelling of 3920859 in words is "three million, nine hundred twenty thousand, eight hundred fifty-nine".