23197356 has 144 divisors (see below), whose sum is σ = 73912384. Its totient is φ = 5971968.

The previous prime is 23197337. The next prime is 23197373. The reversal of 23197356 is 65379132.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23197356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239100 + ... + 239196.

Almost surely, 2^23197356 is an apocalyptic number.

23197356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23197356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36956192).

23197356 is an abundant number, since it is smaller than the sum of its proper divisors (50715028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23197356 is a wasteful number, since it uses less digits than its factorization.

23197356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 195 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 23197356 is about 4816.3633583857. The cubic root of 23197356 is about 285.1977943672.

The spelling of 23197356 in words is "twenty-three million, one hundred ninety-seven thousand, three hundred fifty-six".