4681931 has 4 divisors (see below), whose sum is σ = 4686600. Its totient is φ = 4677264.

The previous prime is 4681921. The next prime is 4681939. The reversal of 4681931 is 1391864.

It is a happy number.

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 4681931 - 2¹⁴ = 4665547 is a prime.

It is a super-2 number, since 2×4681931² = 43840955777522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4681939) 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, 146 + ... + 3063.

It is an arithmetic number, because the mean of its divisors is an integer number (1171650).

Almost surely, 2^4681931 is an apocalyptic number.

4681931 is a deficient number, since it is larger than the sum of its proper divisors (4669).

4681931 is a wasteful number, since it uses less digits than its factorization.

4681931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668.

The product of its digits is 5184, while the sum is 32.

The square root of 4681931 is about 2163.7770217839. Note that the first 3 decimals coincide. The cubic root of 4681931 is about 167.2919344191.

The spelling of 4681931 in words is "four million, six hundred eighty-one thousand, nine hundred thirty-one".