23765628 has 12 divisors (see below), whose sum is σ = 55453160. Its totient is φ = 7921872.

The previous prime is 23765593. The next prime is 23765633. The reversal of 23765628 is 82656732.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 990223 + ... + 990246.

Almost surely, 2^23765628 is an apocalyptic number.

It is an amenable number.

23765628 is an abundant number, since it is smaller than the sum of its proper divisors (31687532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23765628 is a wasteful number, since it uses less digits than its factorization.

23765628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980476 (or 1980474 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 23765628 is about 4875.0003076923. Note that the first 3 decimals coincide. The cubic root of 23765628 is about 287.5078883784.

The spelling of 23765628 in words is "twenty-three million, seven hundred sixty-five thousand, six hundred twenty-eight".