260721827 has 2 divisors, whose sum is σ = 260721828. Its totient is φ = 260721826.

The previous prime is 260721761. The next prime is 260721847. The reversal of 260721827 is 728127062.

260721827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260721827 - 2¹² = 260717731 is a prime.

It is not a weakly prime, because it can be changed into another prime (260721847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130360913 + 130360914.

It is an arithmetic number, because the mean of its divisors is an integer number (130360914).

Almost surely, 2^260721827 is an apocalyptic number.

260721827 is a deficient number, since it is larger than the sum of its proper divisors (1).

260721827 is an equidigital number, since it uses as much as digits as its factorization.

260721827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 260721827 is about 16146.8828880376. The cubic root of 260721827 is about 638.8405333512.

Adding to 260721827 its reverse (728127062), we get a palindrome (988848889).

The spelling of 260721827 in words is "two hundred sixty million, seven hundred twenty-one thousand, eight hundred twenty-seven".