3917959 has 4 divisors (see below), whose sum is σ = 3976504. Its totient is φ = 3859416.

The previous prime is 3917923. The next prime is 3917989. The reversal of 3917959 is 9597193.

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

It is a cyclic number.

It is not a de Polignac number, because 3917959 - 2¹³ = 3909767 is a prime.

It is a Duffinian number.

3917959 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3917909) 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, 29172 + ... + 29305.

It is an arithmetic number, because the mean of its divisors is an integer number (994126).

Almost surely, 2^3917959 is an apocalyptic number.

3917959 is a deficient number, since it is larger than the sum of its proper divisors (58545).

3917959 is an equidigital number, since it uses as much as digits as its factorization.

3917959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58544.

The product of its digits is 76545, while the sum is 43.

The square root of 3917959 is about 1979.3834898776. The cubic root of 3917959 is about 157.6473333694.

The spelling of 3917959 in words is "three million, nine hundred seventeen thousand, nine hundred fifty-nine".