23987485 has 4 divisors (see below), whose sum is σ = 28784988. Its totient is φ = 19189984.

The previous prime is 23987479. The next prime is 23987497. The reversal of 23987485 is 58478932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18507204 + 5480281 = 4302^2 + 2341^2 .

It is a cyclic number.

It is not a de Polignac number, because 23987485 - 2³ = 23987477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2398744 + ... + 2398753.

It is an arithmetic number, because the mean of its divisors is an integer number (7196247).

Almost surely, 2^23987485 is an apocalyptic number.

It is an amenable number.

23987485 is a deficient number, since it is larger than the sum of its proper divisors (4797503).

23987485 is an equidigital number, since it uses as much as digits as its factorization.

23987485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4797502.

The product of its digits is 483840, while the sum is 46.

The square root of 23987485 is about 4897.7020121686. The cubic root of 23987485 is about 288.3997671401.

The spelling of 23987485 in words is "twenty-three million, nine hundred eighty-seven thousand, four hundred eighty-five".