2294921 has 2 divisors, whose sum is σ = 2294922. Its totient is φ = 2294920.

The previous prime is 2294911. The next prime is 2294939. The reversal of 2294921 is 1294922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1597696 + 697225 = 1264^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 2294921 - 2¹⁸ = 2032777 is a prime.

It is not a weakly prime, because it can be changed into another prime (2294911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1147460 + 1147461.

It is an arithmetic number, because the mean of its divisors is an integer number (1147461).

2^2294921 is an apocalyptic number.

It is an amenable number.

2294921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2294921 is an equidigital number, since it uses as much as digits as its factorization.

2294921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 2294921 is about 1514.8996666446. The cubic root of 2294921 is about 131.9033766417.

Subtracting from 2294921 its reverse (1294922), we obtain a palindrome (999999).

The spelling of 2294921 in words is "two million, two hundred ninety-four thousand, nine hundred twenty-one".