2359921 has 2 divisors, whose sum is σ = 2359922. Its totient is φ = 2359920.

The previous prime is 2359901. The next prime is 2359927. The reversal of 2359921 is 1299532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2359296 + 625 = 1536^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 2359921 - 2⁷ = 2359793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2359927) 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, 1179960 + 1179961.

It is an arithmetic number, because the mean of its divisors is an integer number (1179961).

2^2359921 is an apocalyptic number.

It is an amenable number.

2359921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2359921 is an equidigital number, since it uses as much as digits as its factorization.

2359921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 31.

The square root of 2359921 is about 1536.2034370486. The cubic root of 2359921 is about 133.1371190301.

The spelling of 2359921 in words is "two million, three hundred fifty-nine thousand, nine hundred twenty-one".