5673987 has 24 divisors (see below), whose sum is σ = 9188400. Its totient is φ = 3343680.

The previous prime is 5673973. The next prime is 5673991. The reversal of 5673987 is 7893765.

It is a happy number.

5673987 is a `hidden beast` number, since 567 + 3 + 9 + 87 = 666.

It is not a de Polignac number, because 5673987 - 2¹⁶ = 5608451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5673907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2889 + ... + 4437.

It is an arithmetic number, because the mean of its divisors is an integer number (382850).

Almost surely, 2^5673987 is an apocalyptic number.

5673987 is a deficient number, since it is larger than the sum of its proper divisors (3514413).

5673987 is a wasteful number, since it uses less digits than its factorization.

5673987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1600 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 5673987 is about 2382.0132241447. The cubic root of 5673987 is about 178.3594449397.

It can be divided in two parts, 567 and 3987, that added together give a palindrome (4554).

The spelling of 5673987 in words is "five million, six hundred seventy-three thousand, nine hundred eighty-seven".