1398596287 has 6 divisors (see below), whose sum is σ = 1537300184. Its totient is φ = 1271451060.

The previous prime is 1398596233. The next prime is 1398596299. The reversal of 1398596287 is 7826958931.

It is not a de Polignac number, because 1398596287 - 2²⁷ = 1264378559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398596587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5779203 + ... + 5779444.

Almost surely, 2^1398596287 is an apocalyptic number.

1398596287 is a deficient number, since it is larger than the sum of its proper divisors (138703897).

1398596287 is a wasteful number, since it uses less digits than its factorization.

1398596287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11558669 (or 11558658 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The square root of 1398596287 is about 37397.8112594842. The cubic root of 1398596287 is about 1118.3149317645.

The spelling of 1398596287 in words is "one billion, three hundred ninety-eight million, five hundred ninety-six thousand, two hundred eighty-seven".