826886513 has 2 divisors, whose sum is σ = 826886514. Its totient is φ = 826886512.

The previous prime is 826886509. The next prime is 826886527. The reversal of 826886513 is 315688628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 780196624 + 46689889 = 27932^2 + 6833^2 .

It is a cyclic number.

It is not a de Polignac number, because 826886513 - 2² = 826886509 is a prime.

It is not a weakly prime, because it can be changed into another prime (826886503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413443256 + 413443257.

It is an arithmetic number, because the mean of its divisors is an integer number (413443257).

Almost surely, 2^826886513 is an apocalyptic number.

It is an amenable number.

826886513 is a deficient number, since it is larger than the sum of its proper divisors (1).

826886513 is an equidigital number, since it uses as much as digits as its factorization.

826886513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 47.

The square root of 826886513 is about 28755.6344565722. The cubic root of 826886513 is about 938.6030680265.

The spelling of 826886513 in words is "eight hundred twenty-six million, eight hundred eighty-six thousand, five hundred thirteen".