4940721 has 18 divisors (see below), whose sum is σ = 7352982. Its totient is φ = 3196800.

The previous prime is 4940717. The next prime is 4940729. The reversal of 4940721 is 1270494.

It is a happy number.

4940721 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4260096 + 680625 = 2064^2 + 825^2 .

It is not a de Polignac number, because 4940721 - 2² = 4940717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4940729) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12121 + ... + 12521.

It is an arithmetic number, because the mean of its divisors is an integer number (408499).

Almost surely, 2^4940721 is an apocalyptic number.

It is an amenable number.

4940721 is a deficient number, since it is larger than the sum of its proper divisors (2412261).

4940721 is a wasteful number, since it uses less digits than its factorization.

4940721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 4940721 is about 2222.7732677896. The cubic root of 4940721 is about 170.3191352407.

The spelling of 4940721 in words is "four million, nine hundred forty thousand, seven hundred twenty-one".