2947873 has 4 divisors (see below), whose sum is σ = 2958228. Its totient is φ = 2937520.

The previous prime is 2947853. The next prime is 2947877. The reversal of 2947873 is 3787492.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2334784 + 613089 = 1528^2 + 783^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2947873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2947877) 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, 4738 + ... + 5323.

It is an arithmetic number, because the mean of its divisors is an integer number (739557).

2^2947873 is an apocalyptic number.

It is an amenable number.

2947873 is a deficient number, since it is larger than the sum of its proper divisors (10355).

2947873 is a wasteful number, since it uses less digits than its factorization.

2947873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10354.

The product of its digits is 84672, while the sum is 40.

The square root of 2947873 is about 1716.9370984401. The cubic root of 2947873 is about 143.3847366860.

The spelling of 2947873 in words is "two million, nine hundred forty-seven thousand, eight hundred seventy-three".