4924891 has 4 divisors (see below), whose sum is σ = 4944312. Its totient is φ = 4905472.

The previous prime is 4924847. The next prime is 4924903. The reversal of 4924891 is 1984294.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4924891 - 2⁷ = 4924763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4924891.

It is not an unprimeable number, because it can be changed into a prime (4924841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9325 + ... + 9838.

It is an arithmetic number, because the mean of its divisors is an integer number (1236078).

Almost surely, 2^4924891 is an apocalyptic number.

4924891 is a deficient number, since it is larger than the sum of its proper divisors (19421).

4924891 is a wasteful number, since it uses less digits than its factorization.

4924891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19420.

The product of its digits is 20736, while the sum is 37.

The square root of 4924891 is about 2219.2095439593. The cubic root of 4924891 is about 170.1370405947.

The spelling of 4924891 in words is "four million, nine hundred twenty-four thousand, eight hundred ninety-one".