70880851 has 2 divisors, whose sum is σ = 70880852. Its totient is φ = 70880850.

The previous prime is 70880839. The next prime is 70880869. The reversal of 70880851 is 15808807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70880851 - 2⁵ = 70880819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70880851.

It is not a weakly prime, because it can be changed into another prime (70880881) 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, 35440425 + 35440426.

It is an arithmetic number, because the mean of its divisors is an integer number (35440426).

Almost surely, 2^70880851 is an apocalyptic number.

70880851 is a deficient number, since it is larger than the sum of its proper divisors (1).

70880851 is an equidigital number, since it uses as much as digits as its factorization.

70880851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 70880851 is about 8419.0766120757. The cubic root of 70880851 is about 413.8500141264.

The spelling of 70880851 in words is "seventy million, eight hundred eighty thousand, eight hundred fifty-one".