4639455 has 12 divisors (see below), whose sum is σ = 8041800. Its totient is φ = 2474352.

The previous prime is 4639447. The next prime is 4639457. The reversal of 4639455 is 5549364.

It is a happy number.

It is not a de Polignac number, because 4639455 - 2³ = 4639447 is a prime.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51505 + ... + 51594.

It is an arithmetic number, because the mean of its divisors is an integer number (670150).

Almost surely, 2^4639455 is an apocalyptic number.

4639455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4639455 is a deficient number, since it is larger than the sum of its proper divisors (3402345).

4639455 is a wasteful number, since it uses less digits than its factorization.

4639455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103110 (or 103107 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 4639455 is about 2153.9394141897. The cubic root of 4639455 is about 166.7844878006.

Subtracting 4639455 from its reverse (5549364), we obtain a palindrome (909909).

The spelling of 4639455 in words is "four million, six hundred thirty-nine thousand, four hundred fifty-five".