70256279 has 2 divisors, whose sum is σ = 70256280. Its totient is φ = 70256278.

The previous prime is 70256239. The next prime is 70256287. The reversal of 70256279 is 97265207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70256279 - 2¹² = 70252183 is a prime.

It is a super-3 number, since 3×70256279³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70256209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35128139 + 35128140.

It is an arithmetic number, because the mean of its divisors is an integer number (35128140).

Almost surely, 2^70256279 is an apocalyptic number.

70256279 is a deficient number, since it is larger than the sum of its proper divisors (1).

70256279 is an equidigital number, since it uses as much as digits as its factorization.

70256279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 70256279 is about 8381.9018724869. The cubic root of 70256279 is about 412.6308692812.

The spelling of 70256279 in words is "seventy million, two hundred fifty-six thousand, two hundred seventy-nine".