70634243 has 2 divisors, whose sum is σ = 70634244. Its totient is φ = 70634242.

The previous prime is 70634209. The next prime is 70634273. The reversal of 70634243 is 34243607.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (34243607) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70634243 is a prime.

It is not a weakly prime, because it can be changed into another prime (70634273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35317121 + 35317122.

It is an arithmetic number, because the mean of its divisors is an integer number (35317122).

Almost surely, 2^70634243 is an apocalyptic number.

70634243 is a deficient number, since it is larger than the sum of its proper divisors (1).

70634243 is an equidigital number, since it uses as much as digits as its factorization.

70634243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 70634243 is about 8404.4180643278. The cubic root of 70634243 is about 413.3695020523.

The spelling of 70634243 in words is "seventy million, six hundred thirty-four thousand, two hundred forty-three".