23681629 has 8 divisors (see below), whose sum is σ = 25118208. Its totient is φ = 22249920.

The previous prime is 23681611. The next prime is 23681633. The reversal of 23681629 is 92618632.

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

It is a cyclic number.

It is not a de Polignac number, because 23681629 - 2⁷ = 23681501 is a prime.

It is a super-3 number, since 3×23681629³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23681689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15364 + ... + 16834.

It is an arithmetic number, because the mean of its divisors is an integer number (3139776).

Almost surely, 2^23681629 is an apocalyptic number.

It is an amenable number.

23681629 is a deficient number, since it is larger than the sum of its proper divisors (1436579).

23681629 is a wasteful number, since it uses less digits than its factorization.

23681629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435.

The product of its digits is 31104, while the sum is 37.

The square root of 23681629 is about 4866.3774000790. The cubic root of 23681629 is about 287.1687587738.

It can be divided in two parts, 23681 and 629, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 23681629 in words is "twenty-three million, six hundred eighty-one thousand, six hundred twenty-nine".