5861987 has 4 divisors (see below), whose sum is σ = 6116880. Its totient is φ = 5607096.

The previous prime is 5861963. The next prime is 5862011. The reversal of 5861987 is 7891685.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (5861963) and next prime (5862011).

It is a cyclic number.

It is not a de Polignac number, because 5861987 - 2⁸ = 5861731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5863987) 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, 127412 + ... + 127457.

It is an arithmetic number, because the mean of its divisors is an integer number (1529220).

Almost surely, 2^5861987 is an apocalyptic number.

5861987 is a deficient number, since it is larger than the sum of its proper divisors (254893).

5861987 is a wasteful number, since it uses less digits than its factorization.

5861987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254892.

The product of its digits is 120960, while the sum is 44.

The square root of 5861987 is about 2421.1540636647. The cubic root of 5861987 is about 180.3079809728.

The spelling of 5861987 in words is "five million, eight hundred sixty-one thousand, nine hundred eighty-seven".