3945959 has 4 divisors (see below), whose sum is σ = 4073280. Its totient is φ = 3818640.

The previous prime is 3945937. The next prime is 3945973. The reversal of 3945959 is 9595493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9595493 = 43 ⋅223151.

It is a cyclic number.

It is not a de Polignac number, because 3945959 - 2⁸ = 3945703 is a prime.

It is a super-4 number, since 4×3945959⁴ (a number of 27 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945919) 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, 63614 + ... + 63675.

It is an arithmetic number, because the mean of its divisors is an integer number (1018320).

Almost surely, 2^3945959 is an apocalyptic number.

3945959 is a deficient number, since it is larger than the sum of its proper divisors (127321).

3945959 is a wasteful number, since it uses less digits than its factorization.

3945959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127320.

The product of its digits is 218700, while the sum is 44.

The square root of 3945959 is about 1986.4438074106. The cubic root of 3945959 is about 158.0219886077.

The spelling of 3945959 in words is "three million, nine hundred forty-five thousand, nine hundred fifty-nine".