2421747287 has 4 divisors (see below), whose sum is σ = 2480814336. Its totient is φ = 2362680240.

The previous prime is 2421747259. The next prime is 2421747319. The reversal of 2421747287 is 7827471242.

2421747287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2421747287 - 2²⁰ = 2420698711 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 (2421746287) 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, 29533463 + ... + 29533544.

It is an arithmetic number, because the mean of its divisors is an integer number (620203584).

Almost surely, 2^2421747287 is an apocalyptic number.

2421747287 is a deficient number, since it is larger than the sum of its proper divisors (59067049).

2421747287 is an equidigital number, since it uses as much as digits as its factorization.

2421747287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59067048.

The product of its digits is 351232, while the sum is 44.

The square root of 2421747287 is about 49211.2516300896. The cubic root of 2421747287 is about 1342.8977328485.

The spelling of 2421747287 in words is "two billion, four hundred twenty-one million, seven hundred forty-seven thousand, two hundred eighty-seven".