70071611 has 2 divisors, whose sum is σ = 70071612. Its totient is φ = 70071610.

The previous prime is 70071557. The next prime is 70071613. The reversal of 70071611 is 11617007.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70071611 is a prime.

Together with 70071613, 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 (70071613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35035805 + 35035806.

It is an arithmetic number, because the mean of its divisors is an integer number (35035806).

Almost surely, 2^70071611 is an apocalyptic number.

70071611 is a deficient number, since it is larger than the sum of its proper divisors (1).

70071611 is an equidigital number, since it uses as much as digits as its factorization.

70071611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 70071611 is about 8370.8787471806. The cubic root of 70071611 is about 412.2690198753.

Adding to 70071611 its reverse (11617007), we get a palindrome (81688618).

The spelling of 70071611 in words is "seventy million, seventy-one thousand, six hundred eleven".