69970709 has 2 divisors, whose sum is σ = 69970710. Its totient is φ = 69970708.

The previous prime is 69970687. The next prime is 69970717. The reversal of 69970709 is 90707996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51523684 + 18447025 = 7178^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 69970709 - 2¹² = 69966613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69970739) 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, 34985354 + 34985355.

It is an arithmetic number, because the mean of its divisors is an integer number (34985355).

Almost surely, 2^69970709 is an apocalyptic number.

It is an amenable number.

69970709 is a deficient number, since it is larger than the sum of its proper divisors (1).

69970709 is an equidigital number, since it uses as much as digits as its factorization.

69970709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 69970709 is about 8364.8496101245. The cubic root of 69970709 is about 412.0710378812.

The spelling of 69970709 in words is "sixty-nine million, nine hundred seventy thousand, seven hundred nine".