987593449 has 2 divisors, whose sum is σ = 987593450. Its totient is φ = 987593448.

The previous prime is 987593447. The next prime is 987593479. The reversal of 987593449 is 944395789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976250025 + 11343424 = 31245^2 + 3368^2 .

It is a cyclic number.

It is not a de Polignac number, because 987593449 - 2¹ = 987593447 is a prime.

Together with 987593447, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 987593393 and 987593402.

It is not a weakly prime, because it can be changed into another prime (987593441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493796724 + 493796725.

It is an arithmetic number, because the mean of its divisors is an integer number (493796725).

Almost surely, 2^987593449 is an apocalyptic number.

It is an amenable number.

987593449 is a deficient number, since it is larger than the sum of its proper divisors (1).

987593449 is an equidigital number, since it uses as much as digits as its factorization.

987593449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 58.

The square root of 987593449 is about 31425.9995704194. Note that the first 3 decimals coincide. The cubic root of 987593449 is about 995.8472616357.

The spelling of 987593449 in words is "nine hundred eighty-seven million, five hundred ninety-three thousand, four hundred forty-nine".