23408417 has 4 divisors (see below), whose sum is σ = 23979396. Its totient is φ = 22837440.

The previous prime is 23408389. The next prime is 23408419. The reversal of 23408417 is 71480432.

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 8976016 + 14432401 = 2996^2 + 3799^2 .

It is a cyclic number.

It is not a de Polignac number, because 23408417 - 2⁶ = 23408353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23408417.

It is not an unprimeable number, because it can be changed into a prime (23408419) 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, 285428 + ... + 285509.

It is an arithmetic number, because the mean of its divisors is an integer number (5994849).

Almost surely, 2^23408417 is an apocalyptic number.

It is an amenable number.

23408417 is a deficient number, since it is larger than the sum of its proper divisors (570979).

23408417 is an equidigital number, since it uses as much as digits as its factorization.

23408417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570978.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 23408417 is about 4838.2245710591. The cubic root of 23408417 is about 286.0601410682.

Adding to 23408417 its reverse (71480432), we get a palindrome (94888849).

The spelling of 23408417 in words is "twenty-three million, four hundred eight thousand, four hundred seventeen".