481007721 has 8 divisors (see below), whose sum is σ = 642090240. Its totient is φ = 320298512.

The previous prime is 481007719. The next prime is 481007767. The reversal of 481007721 is 127700184.

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 481007721 - 2¹ = 481007719 is a prime.

It is a super-3 number, since 3×481007721³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (481007521) 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, 90306 + ... + 95483.

It is an arithmetic number, because the mean of its divisors is an integer number (80261280).

Almost surely, 2^481007721 is an apocalyptic number.

It is an amenable number.

481007721 is a deficient number, since it is larger than the sum of its proper divisors (161082519).

481007721 is a wasteful number, since it uses less digits than its factorization.

481007721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186655.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 481007721 is about 21931.8882224035. Note that the first 3 decimals coincide. The cubic root of 481007721 is about 783.5210750043.

The spelling of 481007721 in words is "four hundred eighty-one million, seven thousand, seven hundred twenty-one".