68949563 has 2 divisors, whose sum is σ = 68949564. Its totient is φ = 68949562.

The previous prime is 68949521. The next prime is 68949589. The reversal of 68949563 is 36594986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68949563 - 2¹⁶ = 68884027 is a prime.

It is not a weakly prime, because it can be changed into another prime (68949763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34474781 + 34474782.

It is an arithmetic number, because the mean of its divisors is an integer number (34474782).

Almost surely, 2^68949563 is an apocalyptic number.

68949563 is a deficient number, since it is larger than the sum of its proper divisors (1).

68949563 is an equidigital number, since it uses as much as digits as its factorization.

68949563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 50.

The square root of 68949563 is about 8303.5873572812. The cubic root of 68949563 is about 410.0566310829.

The spelling of 68949563 in words is "sixty-eight million, nine hundred forty-nine thousand, five hundred sixty-three".