3958694 has 4 divisors (see below), whose sum is σ = 5938044. Its totient is φ = 1979346.

The previous prime is 3958687. The next prime is 3958697. The reversal of 3958694 is 4968593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4968593 = 7 ⋅709799.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958697) 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 as a sum of consecutive naturals, namely, 989672 + ... + 989675.

It is an arithmetic number, because the mean of its divisors is an integer number (1484511).

Almost surely, 2^3958694 is an apocalyptic number.

3958694 is a deficient number, since it is larger than the sum of its proper divisors (1979350).

3958694 is a wasteful number, since it uses less digits than its factorization.

3958694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979349.

The product of its digits is 233280, while the sum is 44.

The square root of 3958694 is about 1989.6467023067. The cubic root of 3958694 is about 158.1918035990.

The spelling of 3958694 in words is "three million, nine hundred fifty-eight thousand, six hundred ninety-four".