3958394 has 16 divisors (see below), whose sum is σ = 6535296. Its totient is φ = 1798060.

The previous prime is 3958391. The next prime is 3958397. The reversal of 3958394 is 4938593.

It is an interprime number because it is at equal distance from previous prime (3958391) and next prime (3958397).

It is not an unprimeable number, because it can be changed into a prime (3958391) 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 7 ways as a sum of consecutive naturals, for example, 1919 + ... + 3405.

It is an arithmetic number, because the mean of its divisors is an integer number (408456).

Almost surely, 2^3958394 is an apocalyptic number.

3958394 is a deficient number, since it is larger than the sum of its proper divisors (2576902).

3958394 is a wasteful number, since it uses less digits than its factorization.

3958394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1500 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 3958394 is about 1989.5713106094. The cubic root of 3958394 is about 158.1878074377.

The spelling of 3958394 in words is "three million, nine hundred fifty-eight thousand, three hundred ninety-four".