23087500 has 36 divisors (see below), whose sum is σ = 50528016. Its totient is φ = 9230000.

The previous prime is 23087461. The next prime is 23087503. The reversal of 23087500 is 578032.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (23087503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11577 + ... + 13423.

It is an arithmetic number, because the mean of its divisors is an integer number (1403556).

Almost surely, 2^23087500 is an apocalyptic number.

23087500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23087500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25264008).

23087500 is an abundant number, since it is smaller than the sum of its proper divisors (27440516).

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

23087500 is an equidigital number, since it uses as much as digits as its factorization.

23087500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876 (or 1854 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 23087500 is about 4804.9453690963. The cubic root of 23087500 is about 284.7468769273.

The spelling of 23087500 in words is "twenty-three million, eighty-seven thousand, five hundred".