3992994 has 24 divisors (see below), whose sum is σ = 9161100. Its totient is φ = 1252608.

The previous prime is 3992987. The next prime is 3993019. The reversal of 3992994 is 4992993.

It can be written as a sum of positive squares in 2 ways, for example, as 3861225 + 131769 = 1965^2 + 363^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6219 + ... + 6830.

Almost surely, 2^3992994 is an apocalyptic number.

3992994 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3992994 is an abundant number, since it is smaller than the sum of its proper divisors (5168106).

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

3992994 is a wasteful number, since it uses less digits than its factorization.

3992994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074 (or 13071 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 3992994 is about 1998.2477323896. The cubic root of 3992994 is about 158.6473732710.

Subtracting 3992994 from its reverse (4992993), we obtain a palindrome (999999).

The spelling of 3992994 in words is "three million, nine hundred ninety-two thousand, nine hundred ninety-four".