4621689 has 24 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 2900832.

The previous prime is 4621679. The next prime is 4621691. The reversal of 4621689 is 9861264.

It is not a de Polignac number, because 4621689 - 2¹⁵ = 4588921 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4621619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17047 + ... + 17315.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^4621689 is an apocalyptic number.

It is an amenable number.

4621689 is a deficient number, since it is larger than the sum of its proper divisors (2454471).

4621689 is a wasteful number, since it uses less digits than its factorization.

4621689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 378 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 4621689 is about 2149.8113870756. The cubic root of 4621689 is about 166.5713245808.

The spelling of 4621689 in words is "four million, six hundred twenty-one thousand, six hundred eighty-nine".