196724565 has 16 divisors (see below), whose sum is σ = 349732800. Its totient is φ = 104919696.

The previous prime is 196724509. The next prime is 196724581. The reversal of 196724565 is 565427691.

196724565 is a `hidden beast` number, since 1 + 9 + 67 + 24 + 565 = 666.

It is not a de Polignac number, because 196724565 - 2²¹ = 194627413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 196724565.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728475 + ... + 728744.

It is an arithmetic number, because the mean of its divisors is an integer number (21858300).

Almost surely, 2^196724565 is an apocalyptic number.

196724565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196724565 is a deficient number, since it is larger than the sum of its proper divisors (153008235).

196724565 is a wasteful number, since it uses less digits than its factorization.

196724565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457233 (or 1457227 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 196724565 is about 14025.8534499687. The cubic root of 196724565 is about 581.5934827270.

The spelling of 196724565 in words is "one hundred ninety-six million, seven hundred twenty-four thousand, five hundred sixty-five".