487724893 has 2 divisors, whose sum is σ = 487724894. Its totient is φ = 487724892.

The previous prime is 487724873. The next prime is 487724911. The reversal of 487724893 is 398427784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427538329 + 60186564 = 20677^2 + 7758^2 .

It is a cyclic number.

It is not a de Polignac number, because 487724893 - 2⁹ = 487724381 is a prime.

It is a super-2 number, since 2×487724893² = 475751142503722898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 487724893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487724833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243862446 + 243862447.

It is an arithmetic number, because the mean of its divisors is an integer number (243862447).

Almost surely, 2^487724893 is an apocalyptic number.

It is an amenable number.

487724893 is a deficient number, since it is larger than the sum of its proper divisors (1).

487724893 is an equidigital number, since it uses as much as digits as its factorization.

487724893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 52.

The square root of 487724893 is about 22084.4944021818. The cubic root of 487724893 is about 787.1514637382.

The spelling of 487724893 in words is "four hundred eighty-seven million, seven hundred twenty-four thousand, eight hundred ninety-three".