70695869 has 2 divisors, whose sum is σ = 70695870. Its totient is φ = 70695868.

The previous prime is 70695839. The next prime is 70695893. The reversal of 70695869 is 96859607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40170244 + 30525625 = 6338^2 + 5525^2 .

It is a cyclic number.

It is not a de Polignac number, because 70695869 - 2⁸ = 70695613 is a prime.

It is a super-2 number, since 2×70695869² = 9995811787330322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70695829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35347934 + 35347935.

It is an arithmetic number, because the mean of its divisors is an integer number (35347935).

Almost surely, 2^70695869 is an apocalyptic number.

It is an amenable number.

70695869 is a deficient number, since it is larger than the sum of its proper divisors (1).

70695869 is an equidigital number, since it uses as much as digits as its factorization.

70695869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 70695869 is about 8408.0835509645. The cubic root of 70695869 is about 413.4896841007.

The spelling of 70695869 in words is "seventy million, six hundred ninety-five thousand, eight hundred sixty-nine".