2353621 has 2 divisors, whose sum is σ = 2353622. Its totient is φ = 2353620.

The previous prime is 2353609. The next prime is 2353639. The reversal of 2353621 is 1263532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 192721 = 1470^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 2353621 - 2²¹ = 256469 is a prime.

It is a Chen prime.

It is an Ulam number.

2353621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2353592 and 2353601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2353601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1176810 + 1176811.

It is an arithmetic number, because the mean of its divisors is an integer number (1176811).

2^2353621 is an apocalyptic number.

It is an amenable number.

2353621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2353621 is an equidigital number, since it uses as much as digits as its factorization.

2353621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 22.

The square root of 2353621 is about 1534.1515570503. The cubic root of 2353621 is about 133.0185400125.

The spelling of 2353621 in words is "two million, three hundred fifty-three thousand, six hundred twenty-one".