1387217483 has 4 divisors (see below), whose sum is σ = 1387342968. Its totient is φ = 1387092000.

The previous prime is 1387217473. The next prime is 1387217537. The reversal of 1387217483 is 3847127831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1387217483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387217413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44366 + ... + 68867.

It is an arithmetic number, because the mean of its divisors is an integer number (346835742).

Almost surely, 2^1387217483 is an apocalyptic number.

1387217483 is a deficient number, since it is larger than the sum of its proper divisors (125485).

1387217483 is a wasteful number, since it uses less digits than its factorization.

1387217483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125484.

The product of its digits is 225792, while the sum is 44.

The square root of 1387217483 is about 37245.3686114126. The cubic root of 1387217483 is about 1115.2738461480.

The spelling of 1387217483 in words is "one billion, three hundred eighty-seven million, two hundred seventeen thousand, four hundred eighty-three".