70580669 has 2 divisors, whose sum is σ = 70580670. Its totient is φ = 70580668.

The previous prime is 70580659. The next prime is 70580689. The reversal of 70580669 is 96608507.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51308569 + 19272100 = 7163^2 + 4390^2 .

It is an emirp because it is prime and its reverse (96608507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70580669 is a prime.

It is a super-2 number, since 2×70580669² = 9963261672975122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70580659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35290334 + 35290335.

It is an arithmetic number, because the mean of its divisors is an integer number (35290335).

Almost surely, 2^70580669 is an apocalyptic number.

It is an amenable number.

70580669 is a deficient number, since it is larger than the sum of its proper divisors (1).

70580669 is an equidigital number, since it uses as much as digits as its factorization.

70580669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 70580669 is about 8401.2302075351. The cubic root of 70580669 is about 413.2649660741.

The spelling of 70580669 in words is "seventy million, five hundred eighty thousand, six hundred sixty-nine".