3958418 has 4 divisors (see below), whose sum is σ = 5937630. Its totient is φ = 1979208.

The previous prime is 3958397. The next prime is 3958439. The reversal of 3958418 is 8148593.

3958418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (3958397) and next prime (3958439).

It can be written as a sum of positive squares in only one way, i.e., 2181529 + 1776889 = 1477^2 + 1333^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989603 + ... + 989606.

Almost surely, 2^3958418 is an apocalyptic number.

3958418 is a deficient number, since it is larger than the sum of its proper divisors (1979212).

3958418 is a wasteful number, since it uses less digits than its factorization.

3958418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979211.

The product of its digits is 34560, while the sum is 38.

The square root of 3958418 is about 1989.5773420503. The cubic root of 3958418 is about 158.1881271380.

The spelling of 3958418 in words is "three million, nine hundred fifty-eight thousand, four hundred eighteen".