189768056 has 8 divisors (see below), whose sum is σ = 355815120. Its totient is φ = 94884024.

The previous prime is 189768017. The next prime is 189768077. The reversal of 189768056 is 650867981.

It is a happy number.

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

It is a super-3 number, since 3×189768056³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189767995 and 189768013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11860496 + ... + 11860511.

It is an arithmetic number, because the mean of its divisors is an integer number (44476890).

Almost surely, 2^189768056 is an apocalyptic number.

It is an amenable number.

189768056 is a deficient number, since it is larger than the sum of its proper divisors (166047064).

189768056 is a wasteful number, since it uses less digits than its factorization.

189768056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23721013 (or 23721009 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 189768056 is about 13775.6326896444. The cubic root of 189768056 is about 574.6556789212.

The spelling of 189768056 in words is "one hundred eighty-nine million, seven hundred sixty-eight thousand, fifty-six".