72782806 has 8 divisors (see below), whose sum is σ = 114920280. Its totient is φ = 34476048.

The previous prime is 72782803. The next prime is 72782819. The reversal of 72782806 is 60828727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72782803) 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, 957631 + ... + 957706.

It is an arithmetic number, because the mean of its divisors is an integer number (14365035).

Almost surely, 2^72782806 is an apocalyptic number.

72782806 is a deficient number, since it is larger than the sum of its proper divisors (42137474).

72782806 is a wasteful number, since it uses less digits than its factorization.

72782806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915358.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 72782806 is about 8531.2839596394. The cubic root of 72782806 is about 417.5190204919.

The spelling of 72782806 in words is "seventy-two million, seven hundred eighty-two thousand, eight hundred six".