23662081 has 4 divisors (see below), whose sum is σ = 23710000. Its totient is φ = 23614164.

The previous prime is 23662069. The next prime is 23662091. The reversal of 23662081 is 18026632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23662081 - 2¹¹ = 23660033 is a prime.

It is a super-2 number, since 2×23662081² = 1119788154501122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23662031) 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, 23211 + ... + 24208.

It is an arithmetic number, because the mean of its divisors is an integer number (5927500).

Almost surely, 2^23662081 is an apocalyptic number.

It is an amenable number.

23662081 is a deficient number, since it is larger than the sum of its proper divisors (47919).

23662081 is an equidigital number, since it uses as much as digits as its factorization.

23662081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47918.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 23662081 is about 4864.3685098890. The cubic root of 23662081 is about 287.0897225417.

The spelling of 23662081 in words is "twenty-three million, six hundred sixty-two thousand, eighty-one".