23421806 has 8 divisors (see below), whose sum is σ = 35235000. Its totient is φ = 11676808.

The previous prime is 23421803. The next prime is 23421823. The reversal of 23421806 is 60812432.

23421806 = T₁₈₀ + T₁₈₁ + ... + T₅₂₆.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23421803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16181 + ... + 17568.

It is an arithmetic number, because the mean of its divisors is an integer number (4404375).

Almost surely, 2^23421806 is an apocalyptic number.

23421806 is a deficient number, since it is larger than the sum of its proper divisors (11813194).

23421806 is a wasteful number, since it uses less digits than its factorization.

23421806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34098.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 23421806 is about 4839.6080419803. The cubic root of 23421806 is about 286.1146703034.

The spelling of 23421806 in words is "twenty-three million, four hundred twenty-one thousand, eight hundred six".