2628481 has 2 divisors, whose sum is σ = 2628482. Its totient is φ = 2628480.

The previous prime is 2628407. The next prime is 2628487. The reversal of 2628481 is 1848262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1418481 + 1210000 = 1191^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628481 - 2¹¹ = 2626433 is a prime.

It is a super-2 number, since 2×2628481² = 13817824734722, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2628487) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314240 + 1314241.

It is an arithmetic number, because the mean of its divisors is an integer number (1314241).

2^2628481 is an apocalyptic number.

It is an amenable number.

2628481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628481 is an equidigital number, since it uses as much as digits as its factorization.

2628481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 31.

The square root of 2628481 is about 1621.2590786176. The cubic root of 2628481 is about 138.0071584888.

The spelling of 2628481 in words is "two million, six hundred twenty-eight thousand, four hundred eighty-one".