4645861 has 8 divisors (see below), whose sum is σ = 5335200. Its totient is φ = 4001040.

The previous prime is 4645843. The next prime is 4645867. The reversal of 4645861 is 1685464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4645861 - 2⁷ = 4645733 is a prime.

It is an Ulam number.

4645861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10906 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (666900).

Almost surely, 2^4645861 is an apocalyptic number.

It is an amenable number.

4645861 is a deficient number, since it is larger than the sum of its proper divisors (689339).

4645861 is a wasteful number, since it uses less digits than its factorization.

4645861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22259.

The product of its digits is 23040, while the sum is 34.

The square root of 4645861 is about 2155.4259439842. The cubic root of 4645861 is about 166.8612159263.

The spelling of 4645861 in words is "four million, six hundred forty-five thousand, eight hundred sixty-one".