23161667 has 16 divisors (see below), whose sum is σ = 26298432. Its totient is φ = 20275200.

The previous prime is 23161661. The next prime is 23161669. The reversal of 23161667 is 76616132.

It is a cyclic number.

It is not a de Polignac number, because 23161667 - 2⁴ = 23161651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23161661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13667 + ... + 15267.

It is an arithmetic number, because the mean of its divisors is an integer number (1643652).

Almost surely, 2^23161667 is an apocalyptic number.

23161667 is a deficient number, since it is larger than the sum of its proper divisors (3136765).

23161667 is a wasteful number, since it uses less digits than its factorization.

23161667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678.

The product of its digits is 9072, while the sum is 32.

The square root of 23161667 is about 4812.6569584794. The cubic root of 23161667 is about 285.0514609034.

Adding to 23161667 its reverse (76616132), we get a palindrome (99777799).

The spelling of 23161667 in words is "twenty-three million, one hundred sixty-one thousand, six hundred sixty-seven".