70667711 has 2 divisors, whose sum is σ = 70667712. Its totient is φ = 70667710.

The previous prime is 70667689. The next prime is 70667717. The reversal of 70667711 is 11776607.

It is a strong prime.

It is an emirp because it is prime and its reverse (11776607) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70667711 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70667717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35333855 + 35333856.

It is an arithmetic number, because the mean of its divisors is an integer number (35333856).

Almost surely, 2^70667711 is an apocalyptic number.

70667711 is a deficient number, since it is larger than the sum of its proper divisors (1).

70667711 is an equidigital number, since it uses as much as digits as its factorization.

70667711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 70667711 is about 8406.4089241483. The cubic root of 70667711 is about 413.4347794845.

The spelling of 70667711 in words is "seventy million, six hundred sixty-seven thousand, seven hundred eleven".