2534821 has 2 divisors, whose sum is σ = 2534822. Its totient is φ = 2534820.

The previous prime is 2534789. The next prime is 2534843. The reversal of 2534821 is 1284352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2220100 + 314721 = 1490^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 2534821 - 2⁵ = 2534789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2534881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1267410 + 1267411.

It is an arithmetic number, because the mean of its divisors is an integer number (1267411).

2^2534821 is an apocalyptic number.

It is an amenable number.

2534821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2534821 is an equidigital number, since it uses as much as digits as its factorization.

2534821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 2534821 is about 1592.1121191675. The cubic root of 2534821 is about 136.3481026211.

The spelling of 2534821 in words is "two million, five hundred thirty-four thousand, eight hundred twenty-one".