190779469 has 2 divisors, whose sum is σ = 190779470. Its totient is φ = 190779468.

The previous prime is 190779461. The next prime is 190779497. The reversal of 190779469 is 964977091.

190779469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173448900 + 17330569 = 13170^2 + 4163^2 .

It is a cyclic number.

It is not a de Polignac number, because 190779469 - 2³ = 190779461 is a prime.

It is a super-2 number, since 2×190779469² = 72793611583843922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190779461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95389734 + 95389735.

It is an arithmetic number, because the mean of its divisors is an integer number (95389735).

Almost surely, 2^190779469 is an apocalyptic number.

It is an amenable number.

190779469 is a deficient number, since it is larger than the sum of its proper divisors (1).

190779469 is an equidigital number, since it uses as much as digits as its factorization.

190779469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 190779469 is about 13812.2941251626. The cubic root of 190779469 is about 575.6747909026.

The spelling of 190779469 in words is "one hundred ninety million, seven hundred seventy-nine thousand, four hundred sixty-nine".