68802563 has 2 divisors, whose sum is σ = 68802564. Its totient is φ = 68802562.

The previous prime is 68802557. The next prime is 68802583. The reversal of 68802563 is 36520886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68802563 - 2¹⁶ = 68737027 is a prime.

It is not a weakly prime, because it can be changed into another prime (68802583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34401281 + 34401282.

It is an arithmetic number, because the mean of its divisors is an integer number (34401282).

Almost surely, 2^68802563 is an apocalyptic number.

68802563 is a deficient number, since it is larger than the sum of its proper divisors (1).

68802563 is an equidigital number, since it uses as much as digits as its factorization.

68802563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 68802563 is about 8294.7310384364. The cubic root of 68802563 is about 409.7650110899.

The spelling of 68802563 in words is "sixty-eight million, eight hundred two thousand, five hundred sixty-three".