5321987 has 8 divisors (see below), whose sum is σ = 5993472. Its totient is φ = 4681800.

The previous prime is 5321983. The next prime is 5322007. The reversal of 5321987 is 7891235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5321987 - 2² = 5321983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5321983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7463 + ... + 8144.

It is an arithmetic number, because the mean of its divisors is an integer number (749184).

Almost surely, 2^5321987 is an apocalyptic number.

5321987 is a deficient number, since it is larger than the sum of its proper divisors (671485).

5321987 is a wasteful number, since it uses less digits than its factorization.

5321987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649.

The product of its digits is 15120, while the sum is 35.

The square root of 5321987 is about 2306.9432155994. The cubic root of 5321987 is about 174.5921057913.

The spelling of 5321987 in words is "five million, three hundred twenty-one thousand, nine hundred eighty-seven".