4721826 has 8 divisors (see below), whose sum is σ = 9443664. Its totient is φ = 1573940.

The previous prime is 4721819. The next prime is 4721839. The reversal of 4721826 is 6281274.

It is a sphenic number, since it is the product of 3 distinct primes.

4721826 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 4721793 and 4721802.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 393480 + ... + 393491.

It is an arithmetic number, because the mean of its divisors is an integer number (1180458).

Almost surely, 2^4721826 is an apocalyptic number.

4721826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4721826 is a wasteful number, since it uses less digits than its factorization.

4721826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786976.

The product of its digits is 5376, while the sum is 30.

The square root of 4721826 is about 2172.9762999168. The cubic root of 4721826 is about 167.7657591529.

The spelling of 4721826 in words is "four million, seven hundred twenty-one thousand, eight hundred twenty-six".