579778487 has 2 divisors, whose sum is σ = 579778488. Its totient is φ = 579778486.

The previous prime is 579778477. The next prime is 579778513. The reversal of 579778487 is 784877975.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 579778487 - 2¹⁰ = 579777463 is a prime.

It is a super-2 number, since 2×579778487² = 672286187976018338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (579778477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289889243 + 289889244.

It is an arithmetic number, because the mean of its divisors is an integer number (289889244).

Almost surely, 2^579778487 is an apocalyptic number.

579778487 is a deficient number, since it is larger than the sum of its proper divisors (1).

579778487 is an equidigital number, since it uses as much as digits as its factorization.

579778487 is an evil number, because the sum of its binary digits is even.

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

The square root of 579778487 is about 24078.5898050530. The cubic root of 579778487 is about 833.8489102663.

The spelling of 579778487 in words is "five hundred seventy-nine million, seven hundred seventy-eight thousand, four hundred eighty-seven".