3969199 has 8 divisors (see below), whose sum is σ = 4318272. Its totient is φ = 3626400.

The previous prime is 3969193. The next prime is 3969221. The reversal of 3969199 is 9919693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3969199 - 2³ = 3969191 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 (3969191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (539784).

Almost surely, 2^3969199 is an apocalyptic number.

3969199 is a deficient number, since it is larger than the sum of its proper divisors (349073).

3969199 is a wasteful number, since it uses less digits than its factorization.

3969199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137.

The product of its digits is 118098, while the sum is 46.

The square root of 3969199 is about 1992.2848691891. The cubic root of 3969199 is about 158.3316087224.

Subtracting from 3969199 its sum of digits (46), we obtain a triangular number (3969153 = T₂₈₁₇).

The spelling of 3969199 in words is "three million, nine hundred sixty-nine thousand, one hundred ninety-nine".