69742507 has 2 divisors, whose sum is σ = 69742508. Its totient is φ = 69742506.

The previous prime is 69742471. The next prime is 69742513. The reversal of 69742507 is 70524796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69742507 - 2¹¹ = 69740459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69742507.

It is not a weakly prime, because it can be changed into another prime (69742807) 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, 34871253 + 34871254.

It is an arithmetic number, because the mean of its divisors is an integer number (34871254).

Almost surely, 2^69742507 is an apocalyptic number.

69742507 is a deficient number, since it is larger than the sum of its proper divisors (1).

69742507 is an equidigital number, since it uses as much as digits as its factorization.

69742507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 69742507 is about 8351.1979380206. The cubic root of 69742507 is about 411.6225747514.

The spelling of 69742507 in words is "sixty-nine million, seven hundred forty-two thousand, five hundred seven".