3975699 has 16 divisors (see below), whose sum is σ = 6524672. Its totient is φ = 2096928.

The previous prime is 3975677. The next prime is 3975701. The reversal of 3975699 is 9965793.

3975699 = 547² + 548² + ... + 559².

It is a happy number.

3975699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3975699 - 2⁵ = 3975667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3975649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7009 + ... + 7554.

It is an arithmetic number, because the mean of its divisors is an integer number (407792).

Almost surely, 2^3975699 is an apocalyptic number.

3975699 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3975699 is a deficient number, since it is larger than the sum of its proper divisors (2548973).

3975699 is a wasteful number, since it uses less digits than its factorization.

3975699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14586.

The product of its digits is 459270, while the sum is 48.

The square root of 3975699 is about 1993.9154946988. The cubic root of 3975699 is about 158.4179900621.

The spelling of 3975699 in words is "three million, nine hundred seventy-five thousand, six hundred ninety-nine".