8770879457 has 2 divisors, whose sum is σ = 8770879458. Its totient is φ = 8770879456.

The previous prime is 8770879391. The next prime is 8770879459. The reversal of 8770879457 is 7549780778.

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., 7030654801 + 1740224656 = 83849^2 + 41716^2 .

It is a cyclic number.

It is not a de Polignac number, because 8770879457 - 2²⁸ = 8502444001 is a prime.

It is a super-2 number, since 2×8770879457² (a number of 21 digits) contains 22 as substring.

Together with 8770879459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8770879457.

It is not a weakly prime, because it can be changed into another prime (8770879459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4385439728 + 4385439729.

It is an arithmetic number, because the mean of its divisors is an integer number (4385439729).

Almost surely, 2^8770879457 is an apocalyptic number.

It is an amenable number.

8770879457 is a deficient number, since it is larger than the sum of its proper divisors (1).

8770879457 is an equidigital number, since it uses as much as digits as its factorization.

8770879457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27659520, while the sum is 62.

The square root of 8770879457 is about 93652.9735619751. The cubic root of 8770879457 is about 2062.2803993288.

The spelling of 8770879457 in words is "eight billion, seven hundred seventy million, eight hundred seventy-nine thousand, four hundred fifty-seven".