4639536 has 120 divisors (see below), whose sum is σ = 14798160. Its totient is φ = 1344000.

The previous prime is 4639529. The next prime is 4639543. The reversal of 4639536 is 6359364.

It is an interprime number because it is at equal distance from previous prime (4639529) and next prime (4639543).

It is a super-3 number, since 3×4639536³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4639536.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45886 + ... + 45986.

It is an arithmetic number, because the mean of its divisors is an integer number (123318).

Almost surely, 2^4639536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4639536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7399080).

4639536 is an abundant number, since it is smaller than the sum of its proper divisors (10158624).

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

4639536 is a wasteful number, since it uses less digits than its factorization.

4639536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 146 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 4639536 is about 2153.9582168649. The cubic root of 4639536 is about 166.7854584221.

It can be divided in two parts, 463 and 9536, that added together give a palindrome (9999).

The spelling of 4639536 in words is "four million, six hundred thirty-nine thousand, five hundred thirty-six".