923404222021 has 8 divisors (see below), whose sum is σ = 985185647424. Its totient is φ = 862452077760.

The previous prime is 923404221967. The next prime is 923404222031. The reversal of 923404222021 is 120222404329.

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 923404222021 - 2¹³ = 923404213829 is a prime.

It is a super-2 number, since 2×923404222021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923404222031) 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, 207317985 + ... + 207322438.

It is an arithmetic number, because the mean of its divisors is an integer number (123148205928).

Almost surely, 2^923404222021 is an apocalyptic number.

It is an amenable number.

923404222021 is a deficient number, since it is larger than the sum of its proper divisors (61781425403).

923404222021 is a wasteful number, since it uses less digits than its factorization.

923404222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414640571.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 923404222021 in words is "nine hundred twenty-three billion, four hundred four million, two hundred twenty-two thousand, twenty-one".