70782727 has 2 divisors, whose sum is σ = 70782728. Its totient is φ = 70782726.

The previous prime is 70782721. The next prime is 70782731. The reversal of 70782727 is 72728707.

It is a strong prime.

It is an emirp because it is prime and its reverse (72728707) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70782727 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70782727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70782721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35391363 + 35391364.

It is an arithmetic number, because the mean of its divisors is an integer number (35391364).

Almost surely, 2^70782727 is an apocalyptic number.

70782727 is a deficient number, since it is larger than the sum of its proper divisors (1).

70782727 is an equidigital number, since it uses as much as digits as its factorization.

70782727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76832, while the sum is 40.

The square root of 70782727 is about 8413.2471139269. The cubic root of 70782727 is about 413.6589546630.

The spelling of 70782727 in words is "seventy million, seven hundred eighty-two thousand, seven hundred twenty-seven".