4997520 has 120 divisors (see below), whose sum is σ = 18338112. Its totient is φ = 1209600.

The previous prime is 4997491. The next prime is 4997521. The reversal of 4997520 is 257994.

4997520 is a `hidden beast` number, since 49 + 97 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (4997521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7605 + ... + 8235.

Almost surely, 2^4997520 is an apocalyptic number.

4997520 is a gapful number since it is divisible by the number (40) 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 4997520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9169056).

4997520 is an abundant number, since it is smaller than the sum of its proper divisors (13340592).

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

4997520 is a wasteful number, since it uses less digits than its factorization.

4997520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 4997520 is about 2235.5133638607. The cubic root of 4997520 is about 170.9693183898.

The spelling of 4997520 in words is "four million, nine hundred ninety-seven thousand, five hundred twenty".