70780079 has 2 divisors, whose sum is σ = 70780080. Its totient is φ = 70780078.

The previous prime is 70780067. The next prime is 70780103. The reversal of 70780079 is 97008707.

It is a weak prime.

It is an emirp because it is prime and its reverse (97008707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70780079 - 2¹² = 70775983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70780049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35390039 + 35390040.

It is an arithmetic number, because the mean of its divisors is an integer number (35390040).

Almost surely, 2^70780079 is an apocalyptic number.

70780079 is a deficient number, since it is larger than the sum of its proper divisors (1).

70780079 is an equidigital number, since it uses as much as digits as its factorization.

70780079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 70780079 is about 8413.0897415872. The cubic root of 70780079 is about 413.6537962361.

The spelling of 70780079 in words is "seventy million, seven hundred eighty thousand, seventy-nine".