70306069 has 2 divisors, whose sum is σ = 70306070. Its totient is φ = 70306068.

The previous prime is 70306039. The next prime is 70306079. The reversal of 70306069 is 96060307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48121969 + 22184100 = 6937^2 + 4710^2 .

It is a cyclic number.

It is not a de Polignac number, because 70306069 - 2²³ = 61917461 is a prime.

It is a super-2 number, since 2×70306069² = 9885886676465522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70306069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70306039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35153034 + 35153035.

It is an arithmetic number, because the mean of its divisors is an integer number (35153035).

Almost surely, 2^70306069 is an apocalyptic number.

It is an amenable number.

70306069 is a deficient number, since it is larger than the sum of its proper divisors (1).

70306069 is an equidigital number, since it uses as much as digits as its factorization.

70306069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 70306069 is about 8384.8714361044. The cubic root of 70306069 is about 412.7283222057.

The spelling of 70306069 in words is "seventy million, three hundred six thousand, sixty-nine".