4787121 has 8 divisors (see below), whose sum is σ = 6470560. Its totient is φ = 3147552.

The previous prime is 4787099. The next prime is 4787161. The reversal of 4787121 is 1217874.

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

It is not a de Polignac number, because 4787121 - 2⁵ = 4787089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4787161) 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, 10711 + ... + 11148.

It is an arithmetic number, because the mean of its divisors is an integer number (808820).

Almost surely, 2^4787121 is an apocalyptic number.

It is an amenable number.

4787121 is a deficient number, since it is larger than the sum of its proper divisors (1683439).

4787121 is a wasteful number, since it uses less digits than its factorization.

4787121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21935.

The product of its digits is 3136, while the sum is 30.

The square root of 4787121 is about 2187.9490396259. The cubic root of 4787121 is about 168.5355289074.

The spelling of 4787121 in words is "four million, seven hundred eighty-seven thousand, one hundred twenty-one".