2872643 has 8 divisors (see below), whose sum is σ = 3124512. Its totient is φ = 2630016.

The previous prime is 2872621. The next prime is 2872669. The reversal of 2872643 is 3462782.

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

It is a cyclic number.

It is not a de Polignac number, because 2872643 - 2⁶ = 2872579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2872693) 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, 1655 + ... + 2912.

It is an arithmetic number, because the mean of its divisors is an integer number (390564).

2^2872643 is an apocalyptic number.

2872643 is a deficient number, since it is larger than the sum of its proper divisors (251869).

2872643 is a wasteful number, since it uses less digits than its factorization.

2872643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4621.

The product of its digits is 16128, while the sum is 32.

The square root of 2872643 is about 1694.8873118883. The cubic root of 2872643 is about 142.1544804299.

The spelling of 2872643 in words is "two million, eight hundred seventy-two thousand, six hundred forty-three".