4721887 has 2 divisors, whose sum is σ = 4721888. Its totient is φ = 4721886.

The previous prime is 4721879. The next prime is 4721891. The reversal of 4721887 is 7881274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4721887 - 2³ = 4721879 is a prime.

It is a super-3 number, since 3×4721887³ (a number of 21 digits) contains 333 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4721897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360943 + 2360944.

It is an arithmetic number, because the mean of its divisors is an integer number (2360944).

Almost surely, 2^4721887 is an apocalyptic number.

4721887 is a deficient number, since it is larger than the sum of its proper divisors (1).

4721887 is an equidigital number, since it uses as much as digits as its factorization.

4721887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 37.

The square root of 4721887 is about 2172.9903359196. The cubic root of 4721887 is about 167.7664815900.

The spelling of 4721887 in words is "four million, seven hundred twenty-one thousand, eight hundred eighty-seven".