3999774 has 32 divisors (see below), whose sum is σ = 8426880. Its totient is φ = 1264032.

The previous prime is 3999773. The next prime is 3999781. The reversal of 3999774 is 4779993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9337 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

Almost surely, 2^3999774 is an apocalyptic number.

3999774 is an abundant number, since it is smaller than the sum of its proper divisors (4427106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3999774 is a wasteful number, since it uses less digits than its factorization.

3999774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its digits is 428652, while the sum is 48.

The square root of 3999774 is about 1999.9434992019. The cubic root of 3999774 is about 158.7371155352.

The spelling of 3999774 in words is "three million, nine hundred ninety-nine thousand, seven hundred seventy-four".