69982739 has 2 divisors, whose sum is σ = 69982740. Its totient is φ = 69982738.

The previous prime is 69982733. The next prime is 69982741. The reversal of 69982739 is 93728996.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69982739 is a prime.

Together with 69982741, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69982733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34991369 + 34991370.

It is an arithmetic number, because the mean of its divisors is an integer number (34991370).

Almost surely, 2^69982739 is an apocalyptic number.

69982739 is a deficient number, since it is larger than the sum of its proper divisors (1).

69982739 is an equidigital number, since it uses as much as digits as its factorization.

69982739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 69982739 is about 8365.5686596907. The cubic root of 69982739 is about 412.0946521935.

It can be divided in two parts, 699 and 82739, that added together give a palindrome (83438).

The spelling of 69982739 in words is "sixty-nine million, nine hundred eighty-two thousand, seven hundred thirty-nine".