3961899 has 16 divisors (see below), whose sum is σ = 6179200. Its totient is φ = 2501928.

The previous prime is 3961897. The next prime is 3961907. The reversal of 3961899 is 9981693.

It is not a de Polignac number, because 3961899 - 2¹ = 3961897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3961897) 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, 3349 + ... + 4374.

It is an arithmetic number, because the mean of its divisors is an integer number (386200).

Almost surely, 2^3961899 is an apocalyptic number.

3961899 is a deficient number, since it is larger than the sum of its proper divisors (2217301).

3961899 is a wasteful number, since it uses less digits than its factorization.

3961899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751 (or 7745 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 3961899 is about 1990.4519587270. The cubic root of 3961899 is about 158.2344833285.

The spelling of 3961899 in words is "three million, nine hundred sixty-one thousand, eight hundred ninety-nine".