3995629 has 16 divisors (see below), whose sum is σ = 4821120. Its totient is φ = 3266560.

The previous prime is 3995627. The next prime is 3995633. The reversal of 3995629 is 9265993.

It is not a de Polignac number, because 3995629 - 2¹ = 3995627 is a prime.

It is a super-2 number, since 2×3995629² = 31930102211282, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3837 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (301320).

Almost surely, 2^3995629 is an apocalyptic number.

It is an amenable number.

3995629 is a deficient number, since it is larger than the sum of its proper divisors (825491).

3995629 is a wasteful number, since it uses less digits than its factorization.

3995629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980.

The product of its digits is 131220, while the sum is 43.

The square root of 3995629 is about 1998.9069513111. The cubic root of 3995629 is about 158.6822630394.

It can be divided in two parts, 3995 and 629, that added together give a square (4624 = 68²).

The spelling of 3995629 in words is "three million, nine hundred ninety-five thousand, six hundred twenty-nine".