68700769 has 2 divisors, whose sum is σ = 68700770. Its totient is φ = 68700768.

The previous prime is 68700763. The next prime is 68700781. The reversal of 68700769 is 96700786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64240225 + 4460544 = 8015^2 + 2112^2 .

It is a cyclic number.

It is not a de Polignac number, because 68700769 - 2³ = 68700761 is a prime.

It is a super-2 number, since 2×68700769² = 9439591322382722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68700761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34350384 + 34350385.

It is an arithmetic number, because the mean of its divisors is an integer number (34350385).

Almost surely, 2^68700769 is an apocalyptic number.

It is an amenable number.

68700769 is a deficient number, since it is larger than the sum of its proper divisors (1).

68700769 is an equidigital number, since it uses as much as digits as its factorization.

68700769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 68700769 is about 8288.5927032277. The cubic root of 68700769 is about 409.5628276947.

The spelling of 68700769 in words is "sixty-eight million, seven hundred thousand, seven hundred sixty-nine".