4557861 has 24 divisors (see below), whose sum is σ = 8209344. Its totient is φ = 2367360.

The previous prime is 4557857. The next prime is 4557881. The reversal of 4557861 is 1687554.

It is not a de Polignac number, because 4557861 - 2² = 4557857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4557821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2596 + ... + 3981.

It is an arithmetic number, because the mean of its divisors is an integer number (342056).

Almost surely, 2^4557861 is an apocalyptic number.

It is an amenable number.

4557861 is a deficient number, since it is larger than the sum of its proper divisors (3651483).

4557861 is a wasteful number, since it uses less digits than its factorization.

4557861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601 (or 6598 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 4557861 is about 2134.9147523965. The cubic root of 4557861 is about 165.8009541479.

The spelling of 4557861 in words is "four million, five hundred fifty-seven thousand, eight hundred sixty-one".