423882821 has 8 divisors (see below), whose sum is σ = 441408000. Its totient is φ = 406551600.

The previous prime is 423882793. The next prime is 423882827. The reversal of 423882821 is 128288324.

It is a happy number.

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 423882821 - 2¹⁸ = 423620677 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 (423882827) 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, 44021 + ... + 52778.

It is an arithmetic number, because the mean of its divisors is an integer number (55176000).

Almost surely, 2^423882821 is an apocalyptic number.

It is an amenable number.

423882821 is a deficient number, since it is larger than the sum of its proper divisors (17525179).

423882821 is a wasteful number, since it uses less digits than its factorization.

423882821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96979.

The product of its digits is 49152, while the sum is 38.

The square root of 423882821 is about 20588.4147277055. The cubic root of 423882821 is about 751.1879372652.

The spelling of 423882821 in words is "four hundred twenty-three million, eight hundred eighty-two thousand, eight hundred twenty-one".