4791881 has 2 divisors, whose sum is σ = 4791882. Its totient is φ = 4791880.

The previous prime is 4791863. The next prime is 4791883. The reversal of 4791881 is 1881974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3936256 + 855625 = 1984^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 4791881 - 2⁶ = 4791817 is a prime.

It is a super-2 number, since 2×4791881² = 45924247036322, which contains 22 as substring.

Together with 4791883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4791883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2395940 + 2395941.

It is an arithmetic number, because the mean of its divisors is an integer number (2395941).

Almost surely, 2^4791881 is an apocalyptic number.

It is an amenable number.

4791881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4791881 is an equidigital number, since it uses as much as digits as its factorization.

4791881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 38.

The square root of 4791881 is about 2189.0365460631. The cubic root of 4791881 is about 168.5913706384.

The spelling of 4791881 in words is "four million, seven hundred ninety-one thousand, eight hundred eighty-one".