4781147 has 4 divisors (see below), whose sum is σ = 5464176. Its totient is φ = 4098120.

The previous prime is 4781137. The next prime is 4781167. The reversal of 4781147 is 7411874.

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

It is a cyclic number.

It is not a de Polignac number, because 4781147 - 2⁸ = 4780891 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4781137) 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, 341504 + ... + 341517.

It is an arithmetic number, because the mean of its divisors is an integer number (1366044).

Almost surely, 2^4781147 is an apocalyptic number.

4781147 is a deficient number, since it is larger than the sum of its proper divisors (683029).

4781147 is an equidigital number, since it uses as much as digits as its factorization.

4781147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683028.

The product of its digits is 6272, while the sum is 32.

The square root of 4781147 is about 2186.5834079678. The cubic root of 4781147 is about 168.4653927818.

The spelling of 4781147 in words is "four million, seven hundred eighty-one thousand, one hundred forty-seven".