4638955 has 4 divisors (see below), whose sum is σ = 5566752. Its totient is φ = 3711160.

The previous prime is 4638937. The next prime is 4638961. The reversal of 4638955 is 5598364.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4638955 - 2⁷ = 4638827 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463891 + ... + 463900.

It is an arithmetic number, because the mean of its divisors is an integer number (1391688).

Almost surely, 2^4638955 is an apocalyptic number.

4638955 is a deficient number, since it is larger than the sum of its proper divisors (927797).

4638955 is an equidigital number, since it uses as much as digits as its factorization.

4638955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927796.

The product of its digits is 129600, while the sum is 40.

The square root of 4638955 is about 2153.8233446594. The cubic root of 4638955 is about 166.7784960595.

The spelling of 4638955 in words is "four million, six hundred thirty-eight thousand, nine hundred fifty-five".