70840711 has 2 divisors, whose sum is σ = 70840712. Its totient is φ = 70840710.

The previous prime is 70840699. The next prime is 70840753. The reversal of 70840711 is 11704807.

It is a weak prime.

It is an emirp because it is prime and its reverse (11704807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70840711 - 2¹⁹ = 70316423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70840711.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70840771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35420355 + 35420356.

It is an arithmetic number, because the mean of its divisors is an integer number (35420356).

Almost surely, 2^70840711 is an apocalyptic number.

70840711 is a deficient number, since it is larger than the sum of its proper divisors (1).

70840711 is an equidigital number, since it uses as much as digits as its factorization.

70840711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 70840711 is about 8416.6924026009. The cubic root of 70840711 is about 413.7718779485.

The spelling of 70840711 in words is "seventy million, eight hundred forty thousand, seven hundred eleven".