72195836 has 12 divisors (see below), whose sum is σ = 126435960. Its totient is φ = 36071280.

The previous prime is 72195833. The next prime is 72195857. The reversal of 72195836 is 63859127.

It is a junction number, because it is equal to n+sod(n) for n = 72195793 and 72195802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72195833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230 + ... + 12018.

It is an arithmetic number, because the mean of its divisors is an integer number (10536330).

Almost surely, 2^72195836 is an apocalyptic number.

It is an amenable number.

72195836 is a deficient number, since it is larger than the sum of its proper divisors (54240124).

72195836 is a wasteful number, since it uses less digits than its factorization.

72195836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13324 (or 13322 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 72195836 is about 8496.8132849910. The cubic root of 72195836 is about 416.3936039851.

The spelling of 72195836 in words is "seventy-two million, one hundred ninety-five thousand, eight hundred thirty-six".