23870661 has 8 divisors (see below), whose sum is σ = 32687904. Its totient is φ = 15483600.

The previous prime is 23870659. The next prime is 23870677. The reversal of 23870661 is 16607832.

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

It is not a de Polignac number, because 23870661 - 2¹ = 23870659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23870611) 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, 107415 + ... + 107636.

It is an arithmetic number, because the mean of its divisors is an integer number (4085988).

Almost surely, 2^23870661 is an apocalyptic number.

It is an amenable number.

23870661 is a deficient number, since it is larger than the sum of its proper divisors (8817243).

23870661 is a wasteful number, since it uses less digits than its factorization.

23870661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215091.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 23870661 is about 4885.7610461421. The cubic root of 23870661 is about 287.9308162330.

It can be divided in two parts, 23870 and 661, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 23870661 in words is "twenty-three million, eight hundred seventy thousand, six hundred sixty-one".