70944569 has 2 divisors, whose sum is σ = 70944570. Its totient is φ = 70944568.

The previous prime is 70944563. The next prime is 70944571. The reversal of 70944569 is 96544907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54582544 + 16362025 = 7388^2 + 4045^2 .

It is a cyclic number.

It is not a de Polignac number, because 70944569 - 2¹⁶ = 70879033 is a prime.

It is a super-2 number, since 2×70944569² = 10066263741191522, which contains 22 as substring.

Together with 70944571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70944563) 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, 35472284 + 35472285.

It is an arithmetic number, because the mean of its divisors is an integer number (35472285).

Almost surely, 2^70944569 is an apocalyptic number.

It is an amenable number.

70944569 is a deficient number, since it is larger than the sum of its proper divisors (1).

70944569 is an equidigital number, since it uses as much as digits as its factorization.

70944569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 70944569 is about 8422.8599062314. The cubic root of 70944569 is about 413.9739864788.

The spelling of 70944569 in words is "seventy million, nine hundred forty-four thousand, five hundred sixty-nine".