70671311 has 2 divisors, whose sum is σ = 70671312. Its totient is φ = 70671310.

The previous prime is 70671301. The next prime is 70671319. The reversal of 70671311 is 11317607.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70671311 - 2⁶ = 70671247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70671319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35335655 + 35335656.

It is an arithmetic number, because the mean of its divisors is an integer number (35335656).

Almost surely, 2^70671311 is an apocalyptic number.

70671311 is a deficient number, since it is larger than the sum of its proper divisors (1).

70671311 is an equidigital number, since it uses as much as digits as its factorization.

70671311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 70671311 is about 8406.6230437673. The cubic root of 70671311 is about 413.4417998521.

Adding to 70671311 its reverse (11317607), we get a palindrome (81988918).

The spelling of 70671311 in words is "seventy million, six hundred seventy-one thousand, three hundred eleven".