4227987 has 4 divisors (see below), whose sum is σ = 5637320. Its totient is φ = 2818656.

The previous prime is 4227983. The next prime is 4227989. The reversal of 4227987 is 7897224.

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

It is not a de Polignac number, because 4227987 - 2² = 4227983 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2 + 2¹⁵ + 7² + 9 + 8³ + 7³ .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4227983) 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, 704662 + ... + 704667.

It is an arithmetic number, because the mean of its divisors is an integer number (1409330).

Almost surely, 2^4227987 is an apocalyptic number.

4227987 is a deficient number, since it is larger than the sum of its proper divisors (1409333).

4227987 is a wasteful number, since it uses less digits than its factorization.

4227987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409332.

The product of its digits is 56448, while the sum is 39.

The square root of 4227987 is about 2056.2069448380. The cubic root of 4227987 is about 161.7004447553.

The spelling of 4227987 in words is "four million, two hundred twenty-seven thousand, nine hundred eighty-seven".