62768221 has 2 divisors, whose sum is σ = 62768222. Its totient is φ = 62768220.

The previous prime is 62768201. The next prime is 62768231. The reversal of 62768221 is 12286726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53071225 + 9696996 = 7285^2 + 3114^2 .

It is a cyclic number.

It is not a de Polignac number, because 62768221 - 2¹¹ = 62766173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62768201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31384110 + 31384111.

It is an arithmetic number, because the mean of its divisors is an integer number (31384111).

Almost surely, 2^62768221 is an apocalyptic number.

It is an amenable number.

62768221 is a deficient number, since it is larger than the sum of its proper divisors (1).

62768221 is an equidigital number, since it uses as much as digits as its factorization.

62768221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 62768221 is about 7922.6397747216. The cubic root of 62768221 is about 397.4171518858.

The spelling of 62768221 in words is "sixty-two million, seven hundred sixty-eight thousand, two hundred twenty-one".