481639073 has 4 divisors (see below), whose sum is σ = 484871700. Its totient is φ = 478406448.

The previous prime is 481639061. The next prime is 481639097. The reversal of 481639073 is 370936184.

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 258823744 + 222815329 = 16088^2 + 14927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481639073 is a prime.

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 481639073.

It is not an unprimeable number, because it can be changed into a prime (481639373) 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, 1616090 + ... + 1616387.

It is an arithmetic number, because the mean of its divisors is an integer number (121217925).

Almost surely, 2^481639073 is an apocalyptic number.

It is an amenable number.

481639073 is a deficient number, since it is larger than the sum of its proper divisors (3232627).

481639073 is a wasteful number, since it uses less digits than its factorization.

481639073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232626.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 481639073 is about 21946.2769735552. The cubic root of 481639073 is about 783.8637315442.

The spelling of 481639073 in words is "four hundred eighty-one million, six hundred thirty-nine thousand, seventy-three".