69799139 has 2 divisors, whose sum is σ = 69799140. Its totient is φ = 69799138.

The previous prime is 69799129. The next prime is 69799151. The reversal of 69799139 is 93199796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69799139 - 2⁴ = 69799123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69799109) 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, 34899569 + 34899570.

It is an arithmetic number, because the mean of its divisors is an integer number (34899570).

Almost surely, 2^69799139 is an apocalyptic number.

69799139 is a deficient number, since it is larger than the sum of its proper divisors (1).

69799139 is an equidigital number, since it uses as much as digits as its factorization.

69799139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 826686, while the sum is 53.

The square root of 69799139 is about 8354.5879012672. The cubic root of 69799139 is about 411.7339592516.

The spelling of 69799139 in words is "sixty-nine million, seven hundred ninety-nine thousand, one hundred thirty-nine".