3806999 has 4 divisors (see below), whose sum is σ = 4350864. Its totient is φ = 3263136.

The previous prime is 3806981. The next prime is 3807053. The reversal of 3806999 is 9996083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9996083 = 419 ⋅23857.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3806999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806909) 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, 271922 + ... + 271935.

It is an arithmetic number, because the mean of its divisors is an integer number (1087716).

Almost surely, 2^3806999 is an apocalyptic number.

3806999 is a deficient number, since it is larger than the sum of its proper divisors (543865).

3806999 is an equidigital number, since it uses as much as digits as its factorization.

3806999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543864.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 3806999 is about 1951.1532487224. The cubic root of 3806999 is about 156.1448222301.

The spelling of 3806999 in words is "three million, eight hundred six thousand, nine hundred ninety-nine".