23400417 has 4 divisors (see below), whose sum is σ = 31200560. Its totient is φ = 15600276.

The previous prime is 23400413. The next prime is 23400427. The reversal of 23400417 is 71400432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23400417 - 2² = 23400413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23400393 and 23400402.

It is not an unprimeable number, because it can be changed into a prime (23400413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900067 + ... + 3900072.

It is an arithmetic number, because the mean of its divisors is an integer number (7800140).

Almost surely, 2^23400417 is an apocalyptic number.

It is an amenable number.

23400417 is a deficient number, since it is larger than the sum of its proper divisors (7800143).

23400417 is an equidigital number, since it uses as much as digits as its factorization.

23400417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7800142.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23400417 is about 4837.3977508574. The cubic root of 23400417 is about 286.0275496307.

Adding to 23400417 its reverse (71400432), we get a palindrome (94800849).

The spelling of 23400417 in words is "twenty-three million, four hundred thousand, four hundred seventeen".