70876913 has 2 divisors, whose sum is σ = 70876914. Its totient is φ = 70876912.

The previous prime is 70876901. The next prime is 70876931. The reversal of 70876913 is 31967807.

Together with next prime (70876931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69089344 + 1787569 = 8312^2 + 1337^2 .

It is a cyclic number.

It is not a de Polignac number, because 70876913 - 2¹² = 70872817 is a prime.

It is not a weakly prime, because it can be changed into another prime (70876963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35438456 + 35438457.

It is an arithmetic number, because the mean of its divisors is an integer number (35438457).

Almost surely, 2^70876913 is an apocalyptic number.

It is an amenable number.

70876913 is a deficient number, since it is larger than the sum of its proper divisors (1).

70876913 is an equidigital number, since it uses as much as digits as its factorization.

70876913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 70876913 is about 8418.8427351982. The cubic root of 70876913 is about 413.8423497549.

The spelling of 70876913 in words is "seventy million, eight hundred seventy-six thousand, nine hundred thirteen".