4457987 has 2 divisors, whose sum is σ = 4457988. Its totient is φ = 4457986.

The previous prime is 4457983. The next prime is 4458001. The reversal of 4457987 is 7897544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4457987 - 2² = 4457983 is a prime.

It is not a weakly prime, because it can be changed into another prime (4457983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2228993 + 2228994.

It is an arithmetic number, because the mean of its divisors is an integer number (2228994).

Almost surely, 2^4457987 is an apocalyptic number.

4457987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4457987 is an equidigital number, since it uses as much as digits as its factorization.

4457987 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 4457987 is about 2111.3945628423. The cubic root of 4457987 is about 164.5809630309.

The spelling of 4457987 in words is "four million, four hundred fifty-seven thousand, nine hundred eighty-seven".