4660391 has 4 divisors (see below), whose sum is σ = 4665000. Its totient is φ = 4655784.

The previous prime is 4660361. The next prime is 4660423. The reversal of 4660391 is 1930664.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4660391 - 2¹⁰ = 4659367 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 (4660321) 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, 56 + ... + 3053.

It is an arithmetic number, because the mean of its divisors is an integer number (1166250).

Almost surely, 2^4660391 is an apocalyptic number.

4660391 is a deficient number, since it is larger than the sum of its proper divisors (4609).

4660391 is a wasteful number, since it uses less digits than its factorization.

4660391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4608.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4660391 is about 2158.7938762188. The cubic root of 4660391 is about 167.0349885455.

The spelling of 4660391 in words is "four million, six hundred sixty thousand, three hundred ninety-one".