23198655 has 16 divisors (see below), whose sum is σ = 37183104. Its totient is φ = 12350880.

The previous prime is 23198653. The next prime is 23198657. The reversal of 23198655 is 55689132.

It is an interprime number because it is at equal distance from previous prime (23198653) and next prime (23198657).

It is not a de Polignac number, because 23198655 - 2¹ = 23198653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23198653) 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, 11212 + ... + 13118.

It is an arithmetic number, because the mean of its divisors is an integer number (2323944).

Almost surely, 2^23198655 is an apocalyptic number.

23198655 is a deficient number, since it is larger than the sum of its proper divisors (13984449).

23198655 is a wasteful number, since it uses less digits than its factorization.

23198655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726.

The product of its digits is 64800, while the sum is 39.

The square root of 23198655 is about 4816.4982092803. The cubic root of 23198655 is about 285.2031177472.

The spelling of 23198655 in words is "twenty-three million, one hundred ninety-eight thousand, six hundred fifty-five".