70508357 has 2 divisors, whose sum is σ = 70508358. Its totient is φ = 70508356.

The previous prime is 70508351. The next prime is 70508359. The reversal of 70508357 is 75380507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35450116 + 35058241 = 5954^2 + 5921^2 .

It is a cyclic number.

It is not a de Polignac number, because 70508357 - 2¹⁶ = 70442821 is a prime.

Together with 70508359, 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 (70508351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35254178 + 35254179.

It is an arithmetic number, because the mean of its divisors is an integer number (35254179).

Almost surely, 2^70508357 is an apocalyptic number.

It is an amenable number.

70508357 is a deficient number, since it is larger than the sum of its proper divisors (1).

70508357 is an equidigital number, since it uses as much as digits as its factorization.

70508357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 70508357 is about 8396.9254492344. The cubic root of 70508357 is about 413.1237837544.

The spelling of 70508357 in words is "seventy million, five hundred eight thousand, three hundred fifty-seven".