70868893 has 2 divisors, whose sum is σ = 70868894. Its totient is φ = 70868892.

The previous prime is 70868891. The next prime is 70868909. The reversal of 70868893 is 39886807.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43599609 + 27269284 = 6603^2 + 5222^2 .

It is a cyclic number.

It is not a de Polignac number, because 70868893 - 2¹ = 70868891 is a prime.

Together with 70868891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70868891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35434446 + 35434447.

It is an arithmetic number, because the mean of its divisors is an integer number (35434447).

Almost surely, 2^70868893 is an apocalyptic number.

It is an amenable number.

70868893 is a deficient number, since it is larger than the sum of its proper divisors (1).

70868893 is an equidigital number, since it uses as much as digits as its factorization.

70868893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 70868893 is about 8418.3664092269. The cubic root of 70868893 is about 413.8267398724.

The spelling of 70868893 in words is "seventy million, eight hundred sixty-eight thousand, eight hundred ninety-three".