3999011 has 4 divisors (see below), whose sum is σ = 4026000. Its totient is φ = 3972024.

The previous prime is 3999001. The next prime is 3999053. The reversal of 3999011 is 1109993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1109993 = 41 ⋅27073.

It is a cyclic number.

It is not a de Polignac number, because 3999011 - 2¹⁸ = 3736867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3999001) 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, 13271 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (1006500).

Almost surely, 2^3999011 is an apocalyptic number.

3999011 is a deficient number, since it is larger than the sum of its proper divisors (26989).

3999011 is a wasteful number, since it uses less digits than its factorization.

3999011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26988.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 3999011 is about 1999.7527347150. The cubic root of 3999011 is about 158.7270212881.

The spelling of 3999011 in words is "three million, nine hundred ninety-nine thousand, eleven".