23661002 has 8 divisors (see below), whose sum is σ = 36161316. Its totient is φ = 11607232.

The previous prime is 23660993. The next prime is 23661007. The reversal of 23661002 is 20016632.

It can be written as a sum of positive squares in 2 ways, for example, as 21353641 + 2307361 = 4621^2 + 1519^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23661007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111503 + ... + 111714.

Almost surely, 2^23661002 is an apocalyptic number.

23661002 is a deficient number, since it is larger than the sum of its proper divisors (12500314).

23661002 is a wasteful number, since it uses less digits than its factorization.

23661002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223272.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 23661002 is about 4864.2576000866. The cubic root of 23661002 is about 287.0853586748.

Adding to 23661002 its reverse (20016632), we get a palindrome (43677634).

It can be divided in two parts, 2366 and 1002, that multiplied together give a palindrome (2370732).

The spelling of 23661002 in words is "twenty-three million, six hundred sixty-one thousand, two".