193172984 has 8 divisors (see below), whose sum is σ = 362199360. Its totient is φ = 96586488.

The previous prime is 193172983. The next prime is 193172999. The reversal of 193172984 is 489271391.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193172983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12073304 + ... + 12073319.

It is an arithmetic number, because the mean of its divisors is an integer number (45274920).

Almost surely, 2^193172984 is an apocalyptic number.

It is an amenable number.

193172984 is a deficient number, since it is larger than the sum of its proper divisors (169026376).

193172984 is a wasteful number, since it uses less digits than its factorization.

193172984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24146629 (or 24146625 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 193172984 is about 13898.6684254284. The cubic root of 193172984 is about 578.0722602155.

The spelling of 193172984 in words is "one hundred ninety-three million, one hundred seventy-two thousand, nine hundred eighty-four".