70868849 has 2 divisors, whose sum is σ = 70868850. Its totient is φ = 70868848.

The previous prime is 70868843. The next prime is 70868873. The reversal of 70868849 is 94886807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64915249 + 5953600 = 8057^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 70868849 - 2²⁰ = 69820273 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70868797 and 70868806.

It is not a weakly prime, because it can be changed into another prime (70868843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35434424 + 35434425.

It is an arithmetic number, because the mean of its divisors is an integer number (35434425).

Almost surely, 2^70868849 is an apocalyptic number.

It is an amenable number.

70868849 is a deficient number, since it is larger than the sum of its proper divisors (1).

70868849 is an equidigital number, since it uses as much as digits as its factorization.

70868849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 70868849 is about 8418.3637958929. The cubic root of 70868849 is about 413.8266542289.

It can be divided in two parts, 70868 and 849, that added together give a palindrome (71717).

The spelling of 70868849 in words is "seventy million, eight hundred sixty-eight thousand, eight hundred forty-nine".