4060721 has 8 divisors (see below), whose sum is σ = 4790784. Its totient is φ = 3368160.

The previous prime is 4060717. The next prime is 4060729. The reversal of 4060721 is 1270604.

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 4060721 - 2² = 4060717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4060693 and 4060702.

It is not an unprimeable number, because it can be changed into a prime (4060729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9140 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (598848).

Almost surely, 2^4060721 is an apocalyptic number.

It is an amenable number.

4060721 is a deficient number, since it is larger than the sum of its proper divisors (730063).

4060721 is a wasteful number, since it uses less digits than its factorization.

4060721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18751.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 4060721 is about 2015.1230731645. The cubic root of 4060721 is about 159.5393128398.

The spelling of 4060721 in words is "four million, sixty thousand, seven hundred twenty-one".