23091672 has 32 divisors (see below), whose sum is σ = 58679280. Its totient is φ = 7570560.

The previous prime is 23091671. The next prime is 23091689. The reversal of 23091672 is 27619032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23091671) 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 7 ways as a sum of consecutive naturals, for example, 6423 + ... + 9350.

Almost surely, 2^23091672 is an apocalyptic number.

It is an amenable number.

23091672 is an abundant number, since it is smaller than the sum of its proper divisors (35587608).

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

23091672 is a wasteful number, since it uses less digits than its factorization.

23091672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15843 (or 15839 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 23091672 is about 4805.3794855349. The cubic root of 23091672 is about 284.7640275127.

The spelling of 23091672 in words is "twenty-three million, ninety-one thousand, six hundred seventy-two".