196247865 has 64 divisors (see below), whose sum is σ = 367027200. Its totient is φ = 88531200.

The previous prime is 196247861. The next prime is 196247867. The reversal of 196247865 is 568742691.

It is not a de Polignac number, because 196247865 - 2² = 196247861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196247861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 184435 + ... + 185495.

It is an arithmetic number, because the mean of its divisors is an integer number (5734800).

Almost surely, 2^196247865 is an apocalyptic number.

196247865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196247865 is a deficient number, since it is larger than the sum of its proper divisors (170779335).

196247865 is a wasteful number, since it uses less digits than its factorization.

196247865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158.

The product of its digits is 725760, while the sum is 48.

The square root of 196247865 is about 14008.8495244970. The cubic root of 196247865 is about 581.1233332496.

The spelling of 196247865 in words is "one hundred ninety-six million, two hundred forty-seven thousand, eight hundred sixty-five".