69967379 has 2 divisors, whose sum is σ = 69967380. Its totient is φ = 69967378.

The previous prime is 69967369. The next prime is 69967397. The reversal of 69967379 is 97376996.

Together with next prime (69967397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69967379 is a prime.

It is not a weakly prime, because it can be changed into another prime (69967369) 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, 34983689 + 34983690.

It is an arithmetic number, because the mean of its divisors is an integer number (34983690).

Almost surely, 2^69967379 is an apocalyptic number.

69967379 is a deficient number, since it is larger than the sum of its proper divisors (1).

69967379 is an equidigital number, since it uses as much as digits as its factorization.

69967379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3857868, while the sum is 56.

The square root of 69967379 is about 8364.6505605435. The cubic root of 69967379 is about 412.0645007728.

The spelling of 69967379 in words is "sixty-nine million, nine hundred sixty-seven thousand, three hundred seventy-nine".