4220887 has 8 divisors (see below), whose sum is σ = 4625280. Its totient is φ = 3819960.

The previous prime is 4220873. The next prime is 4220893. The reversal of 4220887 is 7880224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4220887 is a prime.

4220887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220857) 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, 2164 + ... + 3622.

It is an arithmetic number, because the mean of its divisors is an integer number (578160).

Almost surely, 2^4220887 is an apocalyptic number.

4220887 is a deficient number, since it is larger than the sum of its proper divisors (404393).

4220887 is a wasteful number, since it uses less digits than its factorization.

4220887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 4220887 is about 2054.4797394961. The cubic root of 4220887 is about 161.6098802695.

The spelling of 4220887 in words is "four million, two hundred twenty thousand, eight hundred eighty-seven".