4891520 has 32 divisors (see below), whose sum is σ = 11695320. Its totient is φ = 1956352.

The previous prime is 4891519. The next prime is 4891547. The reversal of 4891520 is 251984.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3182 + ... + 4461.

Almost surely, 2^4891520 is an apocalyptic number.

4891520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4891520 is an abundant number, since it is smaller than the sum of its proper divisors (6803800).

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

4891520 is an equidigital number, since it uses as much as digits as its factorization.

4891520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7662 (or 7650 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 4891520 is about 2211.6780959263. The cubic root of 4891520 is about 169.7518871937.

The spelling of 4891520 in words is "four million, eight hundred ninety-one thousand, five hundred twenty".