190769647 has 2 divisors, whose sum is σ = 190769648. Its totient is φ = 190769646.

The previous prime is 190769641. The next prime is 190769653. The reversal of 190769647 is 746967091.

It is a balanced prime because it is at equal distance from previous prime (190769641) and next prime (190769653).

It is a cyclic number.

It is not a de Polignac number, because 190769647 - 2³ = 190769639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190769647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190769641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95384823 + 95384824.

It is an arithmetic number, because the mean of its divisors is an integer number (95384824).

Almost surely, 2^190769647 is an apocalyptic number.

190769647 is a deficient number, since it is larger than the sum of its proper divisors (1).

190769647 is an equidigital number, since it uses as much as digits as its factorization.

190769647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 190769647 is about 13811.9385677753. The cubic root of 190769647 is about 575.6649114767.

The spelling of 190769647 in words is "one hundred ninety million, seven hundred sixty-nine thousand, six hundred forty-seven".