4921770 has 64 divisors (see below), whose sum is σ = 14100480. Its totient is φ = 1075008.

The previous prime is 4921769. The next prime is 4921771. The reversal of 4921770 is 771294.

It is an interprime number because it is at equal distance from previous prime (4921769) and next prime (4921771).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4921771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4321 + ... + 5339.

It is an arithmetic number, because the mean of its divisors is an integer number (220320).

Almost surely, 2^4921770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4921770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7050240).

4921770 is an abundant number, since it is smaller than the sum of its proper divisors (9178710).

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

4921770 is a wasteful number, since it uses less digits than its factorization.

4921770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 4921770 is about 2218.5062542170. The cubic root of 4921770 is about 170.1010932739.

The spelling of 4921770 in words is "four million, nine hundred twenty-one thousand, seven hundred seventy".