3920199 has 4 divisors (see below), whose sum is σ = 5226936. Its totient is φ = 2613464.

The previous prime is 3920197. The next prime is 3920201. The reversal of 3920199 is 9910293.

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 (3920197) and next prime (3920201).

It is a cyclic number.

It is not a de Polignac number, because 3920199 - 2¹ = 3920197 is a prime.

It is a D-number.

3920199 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653364 + ... + 653369.

It is an arithmetic number, because the mean of its divisors is an integer number (1306734).

Almost surely, 2^3920199 is an apocalyptic number.

3920199 is a deficient number, since it is larger than the sum of its proper divisors (1306737).

3920199 is a wasteful number, since it uses less digits than its factorization.

3920199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306736.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 3920199 is about 1979.9492417736. The cubic root of 3920199 is about 157.6773713518.

The spelling of 3920199 in words is "three million, nine hundred twenty thousand, one hundred ninety-nine".