472422821 has 8 divisors (see below), whose sum is σ = 535540320. Its totient is φ = 413130672.

The previous prime is 472422817. The next prime is 472422833. The reversal of 472422821 is 128224274.

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 472422821 - 2² = 472422817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472422121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956075 + ... + 956568.

It is an arithmetic number, because the mean of its divisors is an integer number (66942540).

Almost surely, 2^472422821 is an apocalyptic number.

It is an amenable number.

472422821 is a deficient number, since it is larger than the sum of its proper divisors (63117499).

472422821 is a wasteful number, since it uses less digits than its factorization.

472422821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912675.

The product of its digits is 14336, while the sum is 32.

The square root of 472422821 is about 21735.2897611235. The cubic root of 472422821 is about 778.8317054021.

The spelling of 472422821 in words is "four hundred seventy-two million, four hundred twenty-two thousand, eight hundred twenty-one".