23670661 has 4 divisors (see below), whose sum is σ = 27052192. Its totient is φ = 20289132.

The previous prime is 23670659. The next prime is 23670671. The reversal of 23670661 is 16607632.

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 23670661 - 2¹ = 23670659 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 (23670601) 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 3 ways as a sum of consecutive naturals, for example, 1690755 + ... + 1690768.

It is an arithmetic number, because the mean of its divisors is an integer number (6763048).

Almost surely, 2^23670661 is an apocalyptic number.

It is an amenable number.

23670661 is a deficient number, since it is larger than the sum of its proper divisors (3381531).

23670661 is an equidigital number, since it uses as much as digits as its factorization.

23670661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381530.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 23670661 is about 4865.2503532706. The cubic root of 23670661 is about 287.1244184496.

The spelling of 23670661 in words is "twenty-three million, six hundred seventy thousand, six hundred sixty-one".