70876873 has 2 divisors, whose sum is σ = 70876874. Its totient is φ = 70876872.

The previous prime is 70876843. The next prime is 70876879. The reversal of 70876873 is 37867807.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62599744 + 8277129 = 7912^2 + 2877^2 .

It is an emirp because it is prime and its reverse (37867807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70876873 - 2⁹ = 70876361 is a prime.

It is a super-2 number, since 2×70876873² = 10047062252516258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70876879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35438436 + 35438437.

It is an arithmetic number, because the mean of its divisors is an integer number (35438437).

Almost surely, 2^70876873 is an apocalyptic number.

It is an amenable number.

70876873 is a deficient number, since it is larger than the sum of its proper divisors (1).

70876873 is an equidigital number, since it uses as much as digits as its factorization.

70876873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 70876873 is about 8418.8403595745. The cubic root of 70876873 is about 413.8422719030.

The spelling of 70876873 in words is "seventy million, eight hundred seventy-six thousand, eight hundred seventy-three".