4647861 has 24 divisors (see below), whose sum is σ = 7198464. Its totient is φ = 2993760.

The previous prime is 4647823. The next prime is 4647871. The reversal of 4647861 is 1687464.

4647861 is a `hidden beast` number, since 4 + 647 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 4647861 - 2⁷ = 4647733 is a prime.

It is a super-2 number, since 2×4647861² = 43205223750642, which contains 22 as substring.

4647861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4647871) 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, 7225 + ... + 7841.

It is an arithmetic number, because the mean of its divisors is an integer number (299936).

Almost surely, 2^4647861 is an apocalyptic number.

It is an amenable number.

4647861 is a deficient number, since it is larger than the sum of its proper divisors (2550603).

4647861 is an equidigital number, since it uses as much as digits as its factorization.

4647861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 651 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 4647861 is about 2155.8898394862. The cubic root of 4647861 is about 166.8851565590.

The spelling of 4647861 in words is "four million, six hundred forty-seven thousand, eight hundred sixty-one".