23470705 has 4 divisors (see below), whose sum is σ = 28164852. Its totient is φ = 18776560.

The previous prime is 23470687. The next prime is 23470709. The reversal of 23470705 is 50707432.

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 13024881 + 10445824 = 3609^2 + 3232^2 .

It is not a de Polignac number, because 23470705 - 2⁵ = 23470673 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23470709) 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 3 ways as a sum of consecutive naturals, for example, 2347066 + ... + 2347075.

It is an arithmetic number, because the mean of its divisors is an integer number (7041213).

Almost surely, 2^23470705 is an apocalyptic number.

It is an amenable number.

23470705 is a deficient number, since it is larger than the sum of its proper divisors (4694147).

23470705 is an equidigital number, since it uses as much as digits as its factorization.

23470705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694146.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 23470705 is about 4844.6573666256. The cubic root of 23470705 is about 286.3136443725.

The spelling of 23470705 in words is "twenty-three million, four hundred seventy thousand, seven hundred five".