8660819 has 2 divisors, whose sum is σ = 8660820. Its totient is φ = 8660818.

The previous prime is 8660797. The next prime is 8660863. The reversal of 8660819 is 9180668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8660819 - 2¹⁶ = 8595283 is a prime.

It is a super-2 number, since 2×8660819² = 150019571501522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8660419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4330409 + 4330410.

It is an arithmetic number, because the mean of its divisors is an integer number (4330410).

Almost surely, 2^8660819 is an apocalyptic number.

8660819 is a deficient number, since it is larger than the sum of its proper divisors (1).

8660819 is an equidigital number, since it uses as much as digits as its factorization.

8660819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 8660819 is about 2942.9269443872. The cubic root of 8660819 is about 205.3617961635.

The spelling of 8660819 in words is "eight million, six hundred sixty thousand, eight hundred nineteen".