23773421 has 8 divisors (see below), whose sum is σ = 28351104. Its totient is φ = 19491120.

The previous prime is 23773403. The next prime is 23773423. The reversal of 23773421 is 12437732.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23773421 - 2²² = 19579117 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 (23773423) 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, 73670 + ... + 73991.

It is an arithmetic number, because the mean of its divisors is an integer number (3543888).

Almost surely, 2^23773421 is an apocalyptic number.

It is an amenable number.

23773421 is a deficient number, since it is larger than the sum of its proper divisors (4577683).

23773421 is a wasteful number, since it uses less digits than its factorization.

23773421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147691.

The product of its digits is 7056, while the sum is 29.

The square root of 23773421 is about 4875.7995241806. The cubic root of 23773421 is about 287.5393105668.

The spelling of 23773421 in words is "twenty-three million, seven hundred seventy-three thousand, four hundred twenty-one".