8719057 has 2 divisors, whose sum is σ = 8719058. Its totient is φ = 8719056.

The previous prime is 8719049. The next prime is 8719099. The reversal of 8719057 is 7509178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5564881 + 3154176 = 2359^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 8719057 - 2³ = 8719049 is a prime.

8719057 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8719037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4359528 + 4359529.

It is an arithmetic number, because the mean of its divisors is an integer number (4359529).

Almost surely, 2^8719057 is an apocalyptic number.

It is an amenable number.

8719057 is a deficient number, since it is larger than the sum of its proper divisors (1).

8719057 is an equidigital number, since it uses as much as digits as its factorization.

8719057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 8719057 is about 2952.8049376821. The cubic root of 8719057 is about 205.8210734647.

The spelling of 8719057 in words is "eight million, seven hundred nineteen thousand, fifty-seven".