3969994 has 8 divisors (see below), whose sum is σ = 6805728. Its totient is φ = 1701420.

The previous prime is 3969983. The next prime is 3969997. The reversal of 3969994 is 4999693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3969997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141772 + ... + 141799.

It is an arithmetic number, because the mean of its divisors is an integer number (850716).

Almost surely, 2^3969994 is an apocalyptic number.

3969994 is a deficient number, since it is larger than the sum of its proper divisors (2835734).

3969994 is a wasteful number, since it uses less digits than its factorization.

3969994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283580.

The product of its digits is 472392, while the sum is 49.

The square root of 3969994 is about 1992.4843788597. The cubic root of 3969994 is about 158.3421788841.

It can be divided in two parts, 39699 and 94, that added together give a palindrome (39793).

The spelling of 3969994 in words is "three million, nine hundred sixty-nine thousand, nine hundred ninety-four".