196415869 has 16 divisors (see below), whose sum is σ = 224748720. Its totient is φ = 170311680.

The previous prime is 196415851. The next prime is 196415899. The reversal of 196415869 is 968514691.

It can be written as a sum of positive squares in 8 ways, for example, as 9765625 + 186650244 = 3125^2 + 13662^2 .

It is a cyclic number.

It is not a de Polignac number, because 196415869 - 2⁷ = 196415741 is a prime.

It is a super-2 number, since 2×196415869² = 77158387190050322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196415839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6909 + ... + 20989.

It is an arithmetic number, because the mean of its divisors is an integer number (14046795).

Almost surely, 2^196415869 is an apocalyptic number.

It is an amenable number.

196415869 is a deficient number, since it is larger than the sum of its proper divisors (28332851).

196415869 is a wasteful number, since it uses less digits than its factorization.

196415869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14160.

The product of its digits is 466560, while the sum is 49.

The square root of 196415869 is about 14014.8445942151. The cubic root of 196415869 is about 581.2891154314.

The spelling of 196415869 in words is "one hundred ninety-six million, four hundred fifteen thousand, eight hundred sixty-nine".