196399719 has 24 divisors (see below), whose sum is σ = 286820352. Its totient is φ = 129498000.

The previous prime is 196399681. The next prime is 196399747. The reversal of 196399719 is 917993691.

It is not a de Polignac number, because 196399719 - 2⁷ = 196399591 is a prime.

It is a super-2 number, since 2×196399719² = 77145699246557922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196399019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 512602 + ... + 512984.

It is an arithmetic number, because the mean of its divisors is an integer number (11950848).

Almost surely, 2^196399719 is an apocalyptic number.

196399719 is a deficient number, since it is larger than the sum of its proper divisors (90420633).

196399719 is a wasteful number, since it uses less digits than its factorization.

196399719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 864 counting only the distinct ones).

The product of its digits is 826686, while the sum is 54.

The square root of 196399719 is about 14014.2684075909. The cubic root of 196399719 is about 581.2731831197.

The spelling of 196399719 in words is "one hundred ninety-six million, three hundred ninety-nine thousand, seven hundred nineteen".