4819491 has 6 divisors (see below), whose sum is σ = 6961500. Its totient is φ = 3212988.

The previous prime is 4819471. The next prime is 4819499. The reversal of 4819491 is 1949184.

4819491 is a `hidden beast` number, since 481 + 94 + 91 = 666.

It is not a de Polignac number, because 4819491 - 2⁷ = 4819363 is a prime.

4819491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4819499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267741 + ... + 267758.

It is an arithmetic number, because the mean of its divisors is an integer number (1160250).

Almost surely, 2^4819491 is an apocalyptic number.

4819491 is a deficient number, since it is larger than the sum of its proper divisors (2142009).

4819491 is a wasteful number, since it uses less digits than its factorization.

4819491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535505 (or 535502 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 4819491 is about 2195.3339153760. Note that the first 3 decimals coincide. The cubic root of 4819491 is about 168.9145489604.

The spelling of 4819491 in words is "four million, eight hundred nineteen thousand, four hundred ninety-one".