4921081 has 8 divisors (see below), whose sum is σ = 5444928. Its totient is φ = 4410000.

The previous prime is 4921079. The next prime is 4921093. The reversal of 4921081 is 1801294.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4921081 - 2¹ = 4921079 is a prime.

It is a super-2 number, since 2×4921081² = 48434076417122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (4921051) 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 7 ways as a sum of consecutive naturals, for example, 2370 + ... + 3931.

It is an arithmetic number, because the mean of its divisors is an integer number (680616).

Almost surely, 2^4921081 is an apocalyptic number.

It is an amenable number.

4921081 is a deficient number, since it is larger than the sum of its proper divisors (523847).

4921081 is a wasteful number, since it uses less digits than its factorization.

4921081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 4921081 is about 2218.3509641173. The cubic root of 4921081 is about 170.0931554031.

The spelling of 4921081 in words is "four million, nine hundred twenty-one thousand, eighty-one".