3947199 has 8 divisors (see below), whose sum is σ = 5432832. Its totient is φ = 2546520.

The previous prime is 3947189. The next prime is 3947227. The reversal of 3947199 is 9917493.

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

It is not a de Polignac number, because 3947199 - 2⁷ = 3947071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3947199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947189) 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, 21129 + ... + 21314.

It is an arithmetic number, because the mean of its divisors is an integer number (679104).

Almost surely, 2^3947199 is an apocalyptic number.

3947199 is a deficient number, since it is larger than the sum of its proper divisors (1485633).

3947199 is a wasteful number, since it uses less digits than its factorization.

3947199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42477.

The product of its digits is 61236, while the sum is 42.

The square root of 3947199 is about 1986.7558984435. The cubic root of 3947199 is about 158.0385394423.

The spelling of 3947199 in words is "three million, nine hundred forty-seven thousand, one hundred ninety-nine".