70385269 has 2 divisors, whose sum is σ = 70385270. Its totient is φ = 70385268.

The previous prime is 70385251. The next prime is 70385279. The reversal of 70385269 is 96258307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62331025 + 8054244 = 7895^2 + 2838^2 .

It is an emirp because it is prime and its reverse (96258307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70385269 - 2⁹ = 70384757 is a prime.

It is a super-2 number, since 2×70385269² = 9908172184404722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70385279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35192634 + 35192635.

It is an arithmetic number, because the mean of its divisors is an integer number (35192635).

Almost surely, 2^70385269 is an apocalyptic number.

It is an amenable number.

70385269 is a deficient number, since it is larger than the sum of its proper divisors (1).

70385269 is an equidigital number, since it uses as much as digits as its factorization.

70385269 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 40.

The square root of 70385269 is about 8389.5928983473. The cubic root of 70385269 is about 412.8832439493.

It can be divided in two parts, 703852 and 69, that added together give a square (703921 = 839²).

The spelling of 70385269 in words is "seventy million, three hundred eighty-five thousand, two hundred sixty-nine".