70872079 has 2 divisors, whose sum is σ = 70872080. Its totient is φ = 70872078.

The previous prime is 70872047. The next prime is 70872089. The reversal of 70872079 is 97027807.

It is a strong prime.

It is an emirp because it is prime and its reverse (97027807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70872079 - 2⁵ = 70872047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70872019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35436039 + 35436040.

It is an arithmetic number, because the mean of its divisors is an integer number (35436040).

Almost surely, 2^70872079 is an apocalyptic number.

70872079 is a deficient number, since it is larger than the sum of its proper divisors (1).

70872079 is an equidigital number, since it uses as much as digits as its factorization.

70872079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 70872079 is about 8418.5556362122. Note that the first 3 decimals coincide. The cubic root of 70872079 is about 413.8329411462.

The spelling of 70872079 in words is "seventy million, eight hundred seventy-two thousand, seventy-nine".