196897215 has 16 divisors (see below), whose sum is σ = 322363008. Its totient is φ = 102569376.

The previous prime is 196897199. The next prime is 196897307. The reversal of 196897215 is 512798691.

It is not a de Polignac number, because 196897215 - 2⁴ = 196897199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151989 + ... + 153278.

It is an arithmetic number, because the mean of its divisors is an integer number (20147688).

Almost surely, 2^196897215 is an apocalyptic number.

196897215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

196897215 is a deficient number, since it is larger than the sum of its proper divisors (125465793).

196897215 is a wasteful number, since it uses less digits than its factorization.

196897215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305318.

The product of its digits is 272160, while the sum is 48.

The square root of 196897215 is about 14032.0068058706. The cubic root of 196897215 is about 581.7635729145.

The spelling of 196897215 in words is "one hundred ninety-six million, eight hundred ninety-seven thousand, two hundred fifteen".