41472721 has 4 divisors (see below), whose sum is σ = 41883444. Its totient is φ = 41062000.

The previous prime is 41472713. The next prime is 41472727. The reversal of 41472721 is 12727414.

41472721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39237696 + 2235025 = 6264^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 41472721 - 2³ = 41472713 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41472721.

It is not an unprimeable number, because it can be changed into a prime (41472727) 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 3 ways as a sum of consecutive naturals, for example, 205210 + ... + 205411.

It is an arithmetic number, because the mean of its divisors is an integer number (10470861).

Almost surely, 2^41472721 is an apocalyptic number.

It is an amenable number.

41472721 is a deficient number, since it is larger than the sum of its proper divisors (410723).

41472721 is a wasteful number, since it uses less digits than its factorization.

41472721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410722.

The product of its digits is 3136, while the sum is 28.

The square root of 41472721 is about 6439.9317542968. The cubic root of 41472721 is about 346.1419027687.

The spelling of 41472721 in words is "forty-one million, four hundred seventy-two thousand, seven hundred twenty-one".