3901659 has 4 divisors (see below), whose sum is σ = 5202216. Its totient is φ = 2601104.

The previous prime is 3901657. The next prime is 3901661. The reversal of 3901659 is 9561093.

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

It is an interprime number because it is at equal distance from previous prime (3901657) and next prime (3901661).

It is a cyclic number.

It is not a de Polignac number, because 3901659 - 2¹ = 3901657 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3901657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650274 + ... + 650279.

It is an arithmetic number, because the mean of its divisors is an integer number (1300554).

Almost surely, 2^3901659 is an apocalyptic number.

3901659 is a deficient number, since it is larger than the sum of its proper divisors (1300557).

3901659 is a wasteful number, since it uses less digits than its factorization.

3901659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300556.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 3901659 is about 1975.2617548062. The cubic root of 3901659 is about 157.4284078757.

It can be divided in two parts, 3901 and 659, that added together give a triangular number (4560 = T₉₅).

The spelling of 3901659 in words is "three million, nine hundred one thousand, six hundred fifty-nine".