72783346 has 8 divisors (see below), whose sum is σ = 109278720. Its totient is φ = 36357108.

The previous prime is 72783331. The next prime is 72783353. The reversal of 72783346 is 64338727.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 72783299 and 72783308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14566 + ... + 18913.

It is an arithmetic number, because the mean of its divisors is an integer number (13659840).

Almost surely, 2^72783346 is an apocalyptic number.

72783346 is a deficient number, since it is larger than the sum of its proper divisors (36495374).

72783346 is a wasteful number, since it uses less digits than its factorization.

72783346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34568.

The product of its digits is 169344, while the sum is 40.

The square root of 72783346 is about 8531.3156078063. The cubic root of 72783346 is about 417.5200530605.

The spelling of 72783346 in words is "seventy-two million, seven hundred eighty-three thousand, three hundred forty-six".