480172897 has 4 divisors (see below), whose sum is σ = 481687956. Its totient is φ = 478657840.

The previous prime is 480172843. The next prime is 480172933. The reversal of 480172897 is 798271084.

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 108493056 + 371679841 = 10416^2 + 19279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-480172897 is a prime.

It is a super-2 number, since 2×480172897² = 461132022026745218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (480172397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757054 + ... + 757687.

It is an arithmetic number, because the mean of its divisors is an integer number (120421989).

Almost surely, 2^480172897 is an apocalyptic number.

It is an amenable number.

480172897 is a deficient number, since it is larger than the sum of its proper divisors (1515059).

480172897 is a wasteful number, since it uses less digits than its factorization.

480172897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515058.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 480172897 is about 21912.8477610739. The cubic root of 480172897 is about 783.0675265139.

The spelling of 480172897 in words is "four hundred eighty million, one hundred seventy-two thousand, eight hundred ninety-seven".