189982447 has 2 divisors, whose sum is σ = 189982448. Its totient is φ = 189982446.

The previous prime is 189982411. The next prime is 189982483. The reversal of 189982447 is 744289981.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (189982411) and next prime (189982483).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189982447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189982394 and 189982403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189989447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94991223 + 94991224.

It is an arithmetic number, because the mean of its divisors is an integer number (94991224).

Almost surely, 2^189982447 is an apocalyptic number.

189982447 is a deficient number, since it is larger than the sum of its proper divisors (1).

189982447 is an equidigital number, since it uses as much as digits as its factorization.

189982447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The square root of 189982447 is about 13783.4120231530. The cubic root of 189982447 is about 574.8720037720.

The spelling of 189982447 in words is "one hundred eighty-nine million, nine hundred eighty-two thousand, four hundred forty-seven".