3999485 has 16 divisors (see below), whose sum is σ = 5520000. Its totient is φ = 2725056.

The previous prime is 3999467. The next prime is 3999487. The reversal of 3999485 is 5849993.

It is a cyclic number.

It is not a de Polignac number, because 3999485 - 2⁶ = 3999421 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999487) 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, 7766 + ... + 8264.

It is an arithmetic number, because the mean of its divisors is an integer number (345000).

Almost surely, 2^3999485 is an apocalyptic number.

3999485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3999485 is a deficient number, since it is larger than the sum of its proper divisors (1520515).

3999485 is a wasteful number, since it uses less digits than its factorization.

3999485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 349920, while the sum is 47.

The square root of 3999485 is about 1999.8712458556. The cubic root of 3999485 is about 158.7332923082.

The spelling of 3999485 in words is "three million, nine hundred ninety-nine thousand, four hundred eighty-five".