2321047 has 4 divisors (see below), whose sum is σ = 2383816. Its totient is φ = 2258280.

The previous prime is 2321041. The next prime is 2321057. The reversal of 2321047 is 7401232.

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

It is a cyclic number.

It is not a de Polignac number, because 2321047 - 2¹⁹ = 1796759 is a prime.

It is an Ulam number.

It is a Duffinian number.

2321047 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321041) 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, 31329 + ... + 31402.

It is an arithmetic number, because the mean of its divisors is an integer number (595954).

2^2321047 is an apocalyptic number.

2321047 is a deficient number, since it is larger than the sum of its proper divisors (62769).

2321047 is an equidigital number, since it uses as much as digits as its factorization.

2321047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62768.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2321047 is about 1523.4982769928. The cubic root of 2321047 is about 132.4020303446.

Adding to 2321047 its reverse (7401232), we get a palindrome (9722279).

The spelling of 2321047 in words is "two million, three hundred twenty-one thousand, forty-seven".