23197839 has 8 divisors (see below), whose sum is σ = 35349120. Its totient is φ = 13255896.

The previous prime is 23197829. The next prime is 23197847. The reversal of 23197839 is 93879132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23197839 - 2⁵ = 23197807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23197839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23197819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552309 + ... + 552350.

It is an arithmetic number, because the mean of its divisors is an integer number (4418640).

Almost surely, 2^23197839 is an apocalyptic number.

23197839 is a deficient number, since it is larger than the sum of its proper divisors (12151281).

23197839 is a wasteful number, since it uses less digits than its factorization.

23197839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104669.

The product of its digits is 81648, while the sum is 42.

The square root of 23197839 is about 4816.4134996904. The cubic root of 23197839 is about 285.1997737534.

The spelling of 23197839 in words is "twenty-three million, one hundred ninety-seven thousand, eight hundred thirty-nine".