2387481 has 4 divisors (see below), whose sum is σ = 3183312. Its totient is φ = 1591652.

The previous prime is 2387477. The next prime is 2387501. The reversal of 2387481 is 1847832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2387481 - 2² = 2387477 is a prime.

It is a super-2 number, since 2×2387481² = 11400131050722, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2387401) 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, 397911 + ... + 397916.

It is an arithmetic number, because the mean of its divisors is an integer number (795828).

2^2387481 is an apocalyptic number.

It is an amenable number.

2387481 is a deficient number, since it is larger than the sum of its proper divisors (795831).

2387481 is an equidigital number, since it uses as much as digits as its factorization.

2387481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795830.

The product of its digits is 10752, while the sum is 33.

The square root of 2387481 is about 1545.1475657684. The cubic root of 2387481 is about 133.6533887581.

The spelling of 2387481 in words is "two million, three hundred eighty-seven thousand, four hundred eighty-one".