3471999 has 4 divisors (see below), whose sum is σ = 4629336. Its totient is φ = 2314664.

The previous prime is 3471997. The next prime is 3472013. The reversal of 3471999 is 9991743.

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

It is a cyclic number.

It is not a de Polignac number, because 3471999 - 2¹ = 3471997 is a prime.

It is an Ulam number.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3471999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3471997) 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, 578664 + ... + 578669.

It is an arithmetic number, because the mean of its divisors is an integer number (1157334).

Almost surely, 2^3471999 is an apocalyptic number.

3471999 is a deficient number, since it is larger than the sum of its proper divisors (1157337).

3471999 is a wasteful number, since it uses less digits than its factorization.

3471999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157336.

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

The square root of 3471999 is about 1863.3300834796. The cubic root of 3471999 is about 151.4234710262.

It can be divided in two parts, 347 and 1999, that added together give a triangular number (2346 = T₆₈).

The spelling of 3471999 in words is "three million, four hundred seventy-one thousand, nine hundred ninety-nine".