4987457 has 2 divisors, whose sum is σ = 4987458. Its totient is φ = 4987456.

The previous prime is 4987453. The next prime is 4987501. The reversal of 4987457 is 7547894.

It is an a-pointer prime, because the next prime (4987501) can be obtained adding 4987457 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3094081 + 1893376 = 1759^2 + 1376^2 .

It is a cyclic number.

It is not a de Polignac number, because 4987457 - 2² = 4987453 is a prime.

It is not a weakly prime, because it can be changed into another prime (4987453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493728 + 2493729.

It is an arithmetic number, because the mean of its divisors is an integer number (2493729).

Almost surely, 2^4987457 is an apocalyptic number.

It is an amenable number.

4987457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4987457 is an equidigital number, since it uses as much as digits as its factorization.

4987457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 44.

The square root of 4987457 is about 2233.2615162582. The cubic root of 4987457 is about 170.8544867454.

The spelling of 4987457 in words is "four million, nine hundred eighty-seven thousand, four hundred fifty-seven".