72284006 has 4 divisors (see below), whose sum is σ = 108426012. Its totient is φ = 36142002.

The previous prime is 72283993. The next prime is 72284011. The reversal of 72284006 is 60048227.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72284006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18071000 + ... + 18071003.

It is an arithmetic number, because the mean of its divisors is an integer number (27106503).

Almost surely, 2^72284006 is an apocalyptic number.

72284006 is a deficient number, since it is larger than the sum of its proper divisors (36142006).

72284006 is a wasteful number, since it uses less digits than its factorization.

72284006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36142005.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 72284006 is about 8502.0001176194. Note that the first 3 decimals coincide. The cubic root of 72284006 is about 416.5630435293.

The spelling of 72284006 in words is "seventy-two million, two hundred eighty-four thousand, six".