23015417 has 4 divisors (see below), whose sum is σ = 23142756. Its totient is φ = 22888080.

The previous prime is 23015389. The next prime is 23015429. The reversal of 23015417 is 71451032.

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 2621161 + 20394256 = 1619^2 + 4516^2 .

It is a cyclic number.

It is not a de Polignac number, because 23015417 - 2⁶ = 23015353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23015392 and 23015401.

It is not an unprimeable number, because it can be changed into a prime (23015497) 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, 63398 + ... + 63759.

It is an arithmetic number, because the mean of its divisors is an integer number (5785689).

Almost surely, 2^23015417 is an apocalyptic number.

It is an amenable number.

23015417 is a deficient number, since it is larger than the sum of its proper divisors (127339).

23015417 is a wasteful number, since it uses less digits than its factorization.

23015417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127338.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 23015417 is about 4797.4385874131. The cubic root of 23015417 is about 284.4502256730.

Adding to 23015417 its reverse (71451032), we get a palindrome (94466449).

It can be divided in two parts, 23015 and 417, that added together give a palindrome (23432).

The spelling of 23015417 in words is "twenty-three million, fifteen thousand, four hundred seventeen".