4661646 has 24 divisors (see below), whose sum is σ = 10249512. Its totient is φ = 1412400.

The previous prime is 4661639. The next prime is 4661651. The reversal of 4661646 is 6461664.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2485 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (427063).

Almost surely, 2^4661646 is an apocalyptic number.

4661646 is an abundant number, since it is smaller than the sum of its proper divisors (5587866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4661646 is a wasteful number, since it uses less digits than its factorization.

4661646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448 (or 6437 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 4661646 is about 2159.0845282202. The cubic root of 4661646 is about 167.0499808567.

It can be divided in two parts, 466 and 1646, that added together give a palindrome (2112).

The spelling of 4661646 in words is "four million, six hundred sixty-one thousand, six hundred forty-six".