480826721 has 4 divisors (see below), whose sum is σ = 492554244. Its totient is φ = 469099200.

The previous prime is 480826679. The next prime is 480826727. The reversal of 480826721 is 127628084.

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 138391696 + 342435025 = 11764^2 + 18505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-480826721 is a prime.

It is a super-3 number, since 3×480826721³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (480826727) 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, 5863700 + ... + 5863781.

It is an arithmetic number, because the mean of its divisors is an integer number (123138561).

Almost surely, 2^480826721 is an apocalyptic number.

480826721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

480826721 is a deficient number, since it is larger than the sum of its proper divisors (11727523).

480826721 is a wasteful number, since it uses less digits than its factorization.

480826721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11727522.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 480826721 is about 21927.7614224526. The cubic root of 480826721 is about 783.4227847549.

The spelling of 480826721 in words is "four hundred eighty million, eight hundred twenty-six thousand, seven hundred twenty-one".