3958911 has 12 divisors (see below), whose sum is σ = 6238440. Its totient is φ = 2399280.

The previous prime is 3958891. The next prime is 3958931. The reversal of 3958911 is 1198593.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3958891) and next prime (3958931).

It is not a de Polignac number, because 3958911 - 2⁵ = 3958879 is a prime.

3958911 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19896 + ... + 20093.

It is an arithmetic number, because the mean of its divisors is an integer number (519870).

Almost surely, 2^3958911 is an apocalyptic number.

3958911 is a deficient number, since it is larger than the sum of its proper divisors (2279529).

3958911 is a wasteful number, since it uses less digits than its factorization.

3958911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40006 (or 40003 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 3958911 is about 1989.7012338540. The cubic root of 3958911 is about 158.1946940299.

The spelling of 3958911 in words is "three million, nine hundred fifty-eight thousand, nine hundred eleven".