3000639 has 4 divisors (see below), whose sum is σ = 4000856. Its totient is φ = 2000424.

The previous prime is 3000637. The next prime is 3000643. The reversal of 3000639 is 9360003.

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

It is not a de Polignac number, because 3000639 - 2¹ = 3000637 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000637) 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, 500104 + ... + 500109.

It is an arithmetic number, because the mean of its divisors is an integer number (1000214).

Almost surely, 2^3000639 is an apocalyptic number.

3000639 is a deficient number, since it is larger than the sum of its proper divisors (1000217).

3000639 is a wasteful number, since it uses less digits than its factorization.

3000639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000216.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 3000639 is about 1732.2352611583. The cubic root of 3000639 is about 144.2351962757.

The spelling of 3000639 in words is "three million, six hundred thirty-nine", and thus it is an aban number.