587199421 has 2 divisors, whose sum is σ = 587199422. Its totient is φ = 587199420.

The previous prime is 587199419. The next prime is 587199439. The reversal of 587199421 is 124991785.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415956025 + 171243396 = 20395^2 + 13086^2 .

It is a cyclic number.

It is not a de Polignac number, because 587199421 - 2¹ = 587199419 is a prime.

Together with 587199419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (587199521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 293599710 + 293599711.

It is an arithmetic number, because the mean of its divisors is an integer number (293599711).

Almost surely, 2^587199421 is an apocalyptic number.

It is an amenable number.

587199421 is a deficient number, since it is larger than the sum of its proper divisors (1).

587199421 is an equidigital number, since it uses as much as digits as its factorization.

587199421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The square root of 587199421 is about 24232.1980224659. The cubic root of 587199421 is about 837.3914832592.

The spelling of 587199421 in words is "five hundred eighty-seven million, one hundred ninety-nine thousand, four hundred twenty-one".