4891523 has 16 divisors (see below), whose sum is σ = 6148800. Its totient is φ = 3866688.

The previous prime is 4891519. The next prime is 4891547. The reversal of 4891523 is 3251984.

It is not a de Polignac number, because 4891523 - 2² = 4891519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4891523.

It is not an unprimeable number, because it can be changed into a prime (4891823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3911 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (384300).

Almost surely, 2^4891523 is an apocalyptic number.

4891523 is a deficient number, since it is larger than the sum of its proper divisors (1257277).

4891523 is a wasteful number, since it uses less digits than its factorization.

4891523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1117 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 4891523 is about 2211.6787741442. The cubic root of 4891523 is about 169.7519218970.

The spelling of 4891523 in words is "four million, eight hundred ninety-one thousand, five hundred twenty-three".