62716981 has 2 divisors, whose sum is σ = 62716982. Its totient is φ = 62716980.

The previous prime is 62716963. The next prime is 62716987. The reversal of 62716981 is 18961726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 22648081 = 6330^2 + 4759^2 .

It is a cyclic number.

It is not a de Polignac number, because 62716981 - 2¹¹ = 62714933 is a prime.

It is a super-2 number, since 2×62716981² = 7866839411508722, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62716987) 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, 31358490 + 31358491.

It is an arithmetic number, because the mean of its divisors is an integer number (31358491).

Almost surely, 2^62716981 is an apocalyptic number.

It is an amenable number.

62716981 is a deficient number, since it is larger than the sum of its proper divisors (1).

62716981 is an equidigital number, since it uses as much as digits as its factorization.

62716981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 62716981 is about 7919.4053438374. The cubic root of 62716981 is about 397.3089803820.

The spelling of 62716981 in words is "sixty-two million, seven hundred sixteen thousand, nine hundred eighty-one".