4688391 has 16 divisors (see below), whose sum is σ = 6547968. Its totient is φ = 2980800.

The previous prime is 4688377. The next prime is 4688393. The reversal of 4688391 is 1938864.

It is not a de Polignac number, because 4688391 - 2¹⁰ = 4687367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4688393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5376 + ... + 6186.

It is an arithmetic number, because the mean of its divisors is an integer number (409248).

Almost surely, 2^4688391 is an apocalyptic number.

4688391 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4688391 is a deficient number, since it is larger than the sum of its proper divisors (1859577).

4688391 is a wasteful number, since it uses less digits than its factorization.

4688391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its digits is 41472, while the sum is 39.

The square root of 4688391 is about 2165.2692673199. The cubic root of 4688391 is about 167.3688406667.

The spelling of 4688391 in words is "four million, six hundred eighty-eight thousand, three hundred ninety-one".