70689711 has 4 divisors (see below), whose sum is σ = 94252952. Its totient is φ = 47126472.

The previous prime is 70689691. The next prime is 70689713. The reversal of 70689711 is 11798607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11798607 = 3 ⋅3932869.

It is not a de Polignac number, because 70689711 - 2⁵ = 70689679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70689711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70689713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11781616 + ... + 11781621.

It is an arithmetic number, because the mean of its divisors is an integer number (23563238).

Almost surely, 2^70689711 is an apocalyptic number.

70689711 is a deficient number, since it is larger than the sum of its proper divisors (23563241).

70689711 is a wasteful number, since it uses less digits than its factorization.

70689711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23563240.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 70689711 is about 8407.7173477704. The cubic root of 70689711 is about 413.4776780083.

The spelling of 70689711 in words is "seventy million, six hundred eighty-nine thousand, seven hundred eleven".