62721013 has 2 divisors, whose sum is σ = 62721014. Its totient is φ = 62721012.

The previous prime is 62720971. The next prime is 62721049. The reversal of 62721013 is 31012726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51811204 + 10909809 = 7198^2 + 3303^2 .

It is a cyclic number.

It is not a de Polignac number, because 62721013 - 2¹⁷ = 62589941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62721083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31360506 + 31360507.

It is an arithmetic number, because the mean of its divisors is an integer number (31360507).

Almost surely, 2^62721013 is an apocalyptic number.

It is an amenable number.

62721013 is a deficient number, since it is larger than the sum of its proper divisors (1).

62721013 is an equidigital number, since it uses as much as digits as its factorization.

62721013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 62721013 is about 7919.6599043141. The cubic root of 62721013 is about 397.3174943732.

Adding to 62721013 its reverse (31012726), we get a palindrome (93733739).

It can be divided in two parts, 6272 and 1013, that multiplied together give a palindrome (6353536).

The spelling of 62721013 in words is "sixty-two million, seven hundred twenty-one thousand, thirteen".