70829069 has 2 divisors, whose sum is σ = 70829070. Its totient is φ = 70829068.

The previous prime is 70829051. The next prime is 70829071. The reversal of 70829069 is 96092807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41126569 + 29702500 = 6413^2 + 5450^2 .

It is a cyclic number.

It is not a de Polignac number, because 70829069 - 2²⁰ = 69780493 is a prime.

It is a super-2 number, since 2×70829069² = 10033514030813522, which contains 22 as substring.

Together with 70829071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70829039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35414534 + 35414535.

It is an arithmetic number, because the mean of its divisors is an integer number (35414535).

Almost surely, 2^70829069 is an apocalyptic number.

It is an amenable number.

70829069 is a deficient number, since it is larger than the sum of its proper divisors (1).

70829069 is an equidigital number, since it uses as much as digits as its factorization.

70829069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 70829069 is about 8416.0007723384. Note that the first 3 decimals coincide. The cubic root of 70829069 is about 413.7492102102.

The spelling of 70829069 in words is "seventy million, eight hundred twenty-nine thousand, sixty-nine".