3965974 has 4 divisors (see below), whose sum is σ = 5948964. Its totient is φ = 1982986.

The previous prime is 3965963. The next prime is 3966007. The reversal of 3965974 is 4795693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4795693 = 7 ⋅685099.

It is a self number, because there is not a number n which added to its sum of digits gives 3965974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991492 + ... + 991495.

It is an arithmetic number, because the mean of its divisors is an integer number (1487241).

Almost surely, 2^3965974 is an apocalyptic number.

3965974 is a deficient number, since it is larger than the sum of its proper divisors (1982990).

3965974 is a wasteful number, since it uses less digits than its factorization.

3965974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982989.

The product of its digits is 204120, while the sum is 43.

The square root of 3965974 is about 1991.4753325111. The cubic root of 3965974 is about 158.2887152826.

The spelling of 3965974 in words is "three million, nine hundred sixty-five thousand, nine hundred seventy-four".