62764981 has 2 divisors, whose sum is σ = 62764982. Its totient is φ = 62764980.

The previous prime is 62764979. The next prime is 62764991. The reversal of 62764981 is 18946726.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46362481 + 16402500 = 6809^2 + 4050^2 .

It is a cyclic number.

It is not a de Polignac number, because 62764981 - 2¹ = 62764979 is a prime.

It is a super-2 number, since 2×62764981² = 7878885679860722, which contains 22 as substring.

Together with 62764979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62764931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31382490 + 31382491.

It is an arithmetic number, because the mean of its divisors is an integer number (31382491).

Almost surely, 2^62764981 is an apocalyptic number.

It is an amenable number.

62764981 is a deficient number, since it is larger than the sum of its proper divisors (1).

62764981 is an equidigital number, since it uses as much as digits as its factorization.

62764981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 62764981 is about 7922.4352947815. The cubic root of 62764981 is about 397.4103137454.

The spelling of 62764981 in words is "sixty-two million, seven hundred sixty-four thousand, nine hundred eighty-one".