2387983689 has 81 divisors (see below), whose sum is σ = 4369264263. Its totient is φ = 1252558944.

The previous prime is 2387983657. The next prime is 2387983699. The reversal of 2387983689 is 9863897832.

The square root of 2387983689 is 48867.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 353252025 + 2034731664 = 18795^2 + 45108^2 .

It is not a de Polignac number, because 2387983689 - 2⁵ = 2387983657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (2387983699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 13340602 + ... + 13340780.

Almost surely, 2^2387983689 is an apocalyptic number.

2387983689 is the 48867-th square number.

2387983689 is the 24434-th centered octagonal number.

It is an amenable number.

2387983689 is a deficient number, since it is larger than the sum of its proper divisors (1981280574).

2387983689 is a wasteful number, since it uses less digits than its factorization.

2387983689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 202 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The cubic root of 2387983689 is about 1336.6276843115.

The spelling of 2387983689 in words is "two billion, three hundred eighty-seven million, nine hundred eighty-three thousand, six hundred eighty-nine".