4640623 has 8 divisors (see below), whose sum is σ = 5014688. Its totient is φ = 4269024.

The previous prime is 4640599. The next prime is 4640717. The reversal of 4640623 is 3260464.

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 4640623 - 2⁵ = 4640591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5965 + ... + 6697.

It is an arithmetic number, because the mean of its divisors is an integer number (626836).

Almost surely, 2^4640623 is an apocalyptic number.

4640623 is a deficient number, since it is larger than the sum of its proper divisors (374065).

4640623 is a wasteful number, since it uses less digits than its factorization.

4640623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 4640623 is about 2154.2105282446. The cubic root of 4640623 is about 166.7984828306.

The spelling of 4640623 in words is "four million, six hundred forty thousand, six hundred twenty-three".