41721481 has 4 divisors (see below), whose sum is σ = 42691792. Its totient is φ = 40751172.

The previous prime is 41721461. The next prime is 41721497. The reversal of 41721481 is 18412714.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41721481 - 2⁷ = 41721353 is a prime.

It is a super-3 number, since 3×41721481³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41721431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485091 + ... + 485176.

It is an arithmetic number, because the mean of its divisors is an integer number (10672948).

Almost surely, 2^41721481 is an apocalyptic number.

It is an amenable number.

41721481 is a deficient number, since it is larger than the sum of its proper divisors (970311).

41721481 is an equidigital number, since it uses as much as digits as its factorization.

41721481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970310.

The product of its digits is 1792, while the sum is 28.

The square root of 41721481 is about 6459.2167481824. The cubic root of 41721481 is about 346.8325951031.

The spelling of 41721481 in words is "forty-one million, seven hundred twenty-one thousand, four hundred eighty-one".