70238279 has 2 divisors, whose sum is σ = 70238280. Its totient is φ = 70238278.

The previous prime is 70238263. The next prime is 70238291. The reversal of 70238279 is 97283207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70238279 - 2⁴ = 70238263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70238209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35119139 + 35119140.

It is an arithmetic number, because the mean of its divisors is an integer number (35119140).

Almost surely, 2^70238279 is an apocalyptic number.

70238279 is a deficient number, since it is larger than the sum of its proper divisors (1).

70238279 is an equidigital number, since it uses as much as digits as its factorization.

70238279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 70238279 is about 8380.8280617132. The cubic root of 70238279 is about 412.5956269268.

The spelling of 70238279 in words is "seventy million, two hundred thirty-eight thousand, two hundred seventy-nine".