67746869 has 2 divisors, whose sum is σ = 67746870. Its totient is φ = 67746868.

The previous prime is 67746863. The next prime is 67746923. The reversal of 67746869 is 96864776.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48121969 + 19624900 = 6937^2 + 4430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67746869 is a prime.

It is a super-2 number, since 2×67746869² = 9179276518606322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 67746869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67746863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33873434 + 33873435.

It is an arithmetic number, because the mean of its divisors is an integer number (33873435).

Almost surely, 2^67746869 is an apocalyptic number.

It is an amenable number.

67746869 is a deficient number, since it is larger than the sum of its proper divisors (1).

67746869 is an equidigital number, since it uses as much as digits as its factorization.

67746869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 53.

The square root of 67746869 is about 8230.8486196746. The cubic root of 67746869 is about 407.6584130734.

The spelling of 67746869 in words is "sixty-seven million, seven hundred forty-six thousand, eight hundred sixty-nine".