4997564 has 24 divisors (see below), whose sum is σ = 10275888. Its totient is φ = 2096640.

The previous prime is 4997563. The next prime is 4997567. The reversal of 4997564 is 4657994.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4997563) 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, 3797 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (428162).

Almost surely, 2^4997564 is an apocalyptic number.

4997564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4997564 is an abundant number, since it is smaller than the sum of its proper divisors (5278324).

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

4997564 is a wasteful number, since it uses less digits than its factorization.

4997564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765 (or 8763 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 4997564 is about 2235.5232049791. The cubic root of 4997564 is about 170.9698201472.

The spelling of 4997564 in words is "four million, nine hundred ninety-seven thousand, five hundred sixty-four".