23734985 has 4 divisors (see below), whose sum is σ = 28481988. Its totient is φ = 18987984.

The previous prime is 23734979. The next prime is 23734987. The reversal of 23734985 is 58943732.

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 17073424 + 6661561 = 4132^2 + 2581^2 .

It is a cyclic number.

It is not a de Polignac number, because 23734985 - 2⁴ = 23734969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23734987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2373494 + ... + 2373503.

It is an arithmetic number, because the mean of its divisors is an integer number (7120497).

Almost surely, 2^23734985 is an apocalyptic number.

It is an amenable number.

23734985 is a deficient number, since it is larger than the sum of its proper divisors (4747003).

23734985 is an equidigital number, since it uses as much as digits as its factorization.

23734985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4747002.

The product of its digits is 181440, while the sum is 41.

The square root of 23734985 is about 4871.8564223507. The cubic root of 23734985 is about 287.3842659565.

The spelling of 23734985 in words is "twenty-three million, seven hundred thirty-four thousand, nine hundred eighty-five".