4921646 has 8 divisors (see below), whose sum is σ = 7771080. Its totient is φ = 2331288.

The previous prime is 4921643. The next prime is 4921667. The reversal of 4921646 is 6461294.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921643) 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 3 ways as a sum of consecutive naturals, for example, 64721 + ... + 64796.

It is an arithmetic number, because the mean of its divisors is an integer number (971385).

Almost surely, 2^4921646 is an apocalyptic number.

4921646 is a deficient number, since it is larger than the sum of its proper divisors (2849434).

4921646 is a wasteful number, since it uses less digits than its factorization.

4921646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129538.

The product of its digits is 10368, while the sum is 32.

The square root of 4921646 is about 2218.4783073089. The cubic root of 4921646 is about 170.0996647422.

The spelling of 4921646 in words is "four million, nine hundred twenty-one thousand, six hundred forty-six".