4921850 has 24 divisors (see below), whose sum is σ = 9223740. Its totient is φ = 1953920.

The previous prime is 4921849. The next prime is 4921853. The reversal of 4921850 is 581294.

It can be written as a sum of positive squares in 6 ways, for example, as 2042041 + 2879809 = 1429^2 + 1697^2 .

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (4921853) 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 11 ways as a sum of consecutive naturals, for example, 8366 + ... + 8934.

Almost surely, 2^4921850 is an apocalyptic number.

4921850 is a deficient number, since it is larger than the sum of its proper divisors (4301890).

4921850 is a wasteful number, since it uses less digits than its factorization.

4921850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 749 counting only the distinct ones).

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

The square root of 4921850 is about 2218.5242842935. The cubic root of 4921850 is about 170.1020148944.

The spelling of 4921850 in words is "four million, nine hundred twenty-one thousand, eight hundred fifty".