193928219 has 8 divisors (see below), whose sum is σ = 203962752. Its totient is φ = 184129920.

The previous prime is 193928209. The next prime is 193928233. The reversal of 193928219 is 912829391.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 193928219 - 2¹² = 193924123 is a prime.

It is a super-2 number, since 2×193928219² = 75216308249023922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 193928219.

It is not an unprimeable number, because it can be changed into a prime (193928209) 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, 57374 + ... + 60659.

It is an arithmetic number, because the mean of its divisors is an integer number (25495344).

Almost surely, 2^193928219 is an apocalyptic number.

193928219 is a deficient number, since it is larger than the sum of its proper divisors (10034533).

193928219 is a wasteful number, since it uses less digits than its factorization.

193928219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118117.

The product of its digits is 69984, while the sum is 44.

The square root of 193928219 is about 13925.8112510546. The cubic root of 193928219 is about 578.8246302259.

The spelling of 193928219 in words is "one hundred ninety-three million, nine hundred twenty-eight thousand, two hundred nineteen".