70643411 has 2 divisors, whose sum is σ = 70643412. Its totient is φ = 70643410.

The previous prime is 70643401. The next prime is 70643413. The reversal of 70643411 is 11434607.

It is a strong prime.

It is an emirp because it is prime and its reverse (11434607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70643411 - 2²⁶ = 3534547 is a prime.

It is a Sophie Germain prime.

Together with 70643413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70643413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35321705 + 35321706.

It is an arithmetic number, because the mean of its divisors is an integer number (35321706).

Almost surely, 2^70643411 is an apocalyptic number.

70643411 is a deficient number, since it is larger than the sum of its proper divisors (1).

70643411 is an equidigital number, since it uses as much as digits as its factorization.

70643411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70643411 is about 8404.9634740432. The cubic root of 70643411 is about 413.3873857656.

The spelling of 70643411 in words is "seventy million, six hundred forty-three thousand, four hundred eleven".