72473036 has 12 divisors (see below), whose sum is σ = 126898128. Its totient is φ = 36216432.

The previous prime is 72473021. The next prime is 72473039. The reversal of 72473036 is 63037427.

It is a junction number, because it is equal to n+sod(n) for n = 72472993 and 72473011.

It is not an unprimeable number, because it can be changed into a prime (72473039) 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 3 ways as a sum of consecutive naturals, for example, 5585 + ... + 13271.

It is an arithmetic number, because the mean of its divisors is an integer number (10574844).

Almost surely, 2^72473036 is an apocalyptic number.

It is an amenable number.

72473036 is a deficient number, since it is larger than the sum of its proper divisors (54425092).

72473036 is a wasteful number, since it uses less digits than its factorization.

72473036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048 (or 10046 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 72473036 is about 8513.1096551143. The cubic root of 72473036 is about 416.9258456474.

The spelling of 72473036 in words is "seventy-two million, four hundred seventy-three thousand, thirty-six".