4387641 has 8 divisors (see below), whose sum is σ = 6104640. Its totient is φ = 2797872.

The previous prime is 4387633. The next prime is 4387661. The reversal of 4387641 is 1467834.

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

It is not a de Polignac number, because 4387641 - 2³ = 4387633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4387661) 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, 31726 + ... + 31863.

It is an arithmetic number, because the mean of its divisors is an integer number (763080).

Almost surely, 2^4387641 is an apocalyptic number.

It is an amenable number.

4387641 is a deficient number, since it is larger than the sum of its proper divisors (1716999).

4387641 is a wasteful number, since it uses less digits than its factorization.

4387641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63615.

The product of its digits is 16128, while the sum is 33.

The square root of 4387641 is about 2094.6696636940. The cubic root of 4387641 is about 163.7106861315.

The spelling of 4387641 in words is "four million, three hundred eighty-seven thousand, six hundred forty-one".