68367769 has 2 divisors, whose sum is σ = 68367770. Its totient is φ = 68367768.

The previous prime is 68367713. The next prime is 68367773. The reversal of 68367769 is 96776386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37063744 + 31304025 = 6088^2 + 5595^2 .

It is a cyclic number.

It is not a de Polignac number, because 68367769 - 2¹⁷ = 68236697 is a prime.

It is a super-2 number, since 2×68367769² = 9348303676074722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68367779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34183884 + 34183885.

It is an arithmetic number, because the mean of its divisors is an integer number (34183885).

Almost surely, 2^68367769 is an apocalyptic number.

It is an amenable number.

68367769 is a deficient number, since it is larger than the sum of its proper divisors (1).

68367769 is an equidigital number, since it uses as much as digits as its factorization.

68367769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The square root of 68367769 is about 8268.4804529006. The cubic root of 68367769 is about 408.9000239854.

The spelling of 68367769 in words is "sixty-eight million, three hundred sixty-seven thousand, seven hundred sixty-nine".