70214689 has 2 divisors, whose sum is σ = 70214690. Its totient is φ = 70214688.

The previous prime is 70214687. The next prime is 70214693. The reversal of 70214689 is 98641207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49238289 + 20976400 = 7017^2 + 4580^2 .

It is a cyclic number.

It is not a de Polignac number, because 70214689 - 2¹ = 70214687 is a prime.

Together with 70214687, 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 (70214687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35107344 + 35107345.

It is an arithmetic number, because the mean of its divisors is an integer number (35107345).

Almost surely, 2^70214689 is an apocalyptic number.

It is an amenable number.

70214689 is a deficient number, since it is larger than the sum of its proper divisors (1).

70214689 is an equidigital number, since it uses as much as digits as its factorization.

70214689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 70214689 is about 8379.4205646930. The cubic root of 70214689 is about 412.5494307461.

The spelling of 70214689 in words is "seventy million, two hundred fourteen thousand, six hundred eighty-nine".