481923921 has 8 divisors (see below), whose sum is σ = 644244480. Its totient is φ = 320442992.

The previous prime is 481923913. The next prime is 481923929. The reversal of 481923921 is 129329184.

It is an interprime number because it is at equal distance from previous prime (481923913) and next prime (481923929).

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 481923921 - 2³ = 481923913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 481923921.

It is not an unprimeable number, because it can be changed into a prime (481923929) 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, 208566 + ... + 210863.

It is an arithmetic number, because the mean of its divisors is an integer number (80530560).

Almost surely, 2^481923921 is an apocalyptic number.

It is an amenable number.

481923921 is a deficient number, since it is larger than the sum of its proper divisors (162320559).

481923921 is a wasteful number, since it uses less digits than its factorization.

481923921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419815.

The product of its digits is 31104, while the sum is 39.

The square root of 481923921 is about 21952.7656799775. The cubic root of 481923921 is about 784.0182303697.

The spelling of 481923921 in words is "four hundred eighty-one million, nine hundred twenty-three thousand, nine hundred twenty-one".