3956899 has 4 divisors (see below), whose sum is σ = 3967264. Its totient is φ = 3946536.

The previous prime is 3956881. The next prime is 3956917. The reversal of 3956899 is 9986593.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3956881) and next prime (3956917).

It is a cyclic number.

It is not a de Polignac number, because 3956899 - 2⁵ = 3956867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587 + ... + 5380.

It is an arithmetic number, because the mean of its divisors is an integer number (991816).

Almost surely, 2^3956899 is an apocalyptic number.

3956899 is a deficient number, since it is larger than the sum of its proper divisors (10365).

3956899 is an equidigital number, since it uses as much as digits as its factorization.

3956899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10364.

The product of its digits is 524880, while the sum is 49.

The square root of 3956899 is about 1989.1955660518. The cubic root of 3956899 is about 158.1678902228.

The spelling of 3956899 in words is "three million, nine hundred fifty-six thousand, eight hundred ninety-nine".