4991532 has 72 divisors (see below), whose sum is σ = 14612976. Its totient is φ = 1314432.

The previous prime is 4991507. The next prime is 4991543. The reversal of 4991532 is 2351994.

It is a junction number, because it is equal to n+sod(n) for n = 4991493 and 4991502.

It is a congruent number.

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, 7318 + ... + 7970.

It is an arithmetic number, because the mean of its divisors is an integer number (202958).

Almost surely, 2^4991532 is an apocalyptic number.

4991532 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4991532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7306488).

4991532 is an abundant number, since it is smaller than the sum of its proper divisors (9621444).

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

4991532 is a wasteful number, since it uses less digits than its factorization.

4991532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 678 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 4991532 is about 2234.1736727479. The cubic root of 4991532 is about 170.9010062777.

The spelling of 4991532 in words is "four million, nine hundred ninety-one thousand, five hundred thirty-two".