72856046 has 4 divisors (see below), whose sum is σ = 109284072. Its totient is φ = 36428022.

The previous prime is 72856039. The next prime is 72856073. The reversal of 72856046 is 64065827.

It is a happy number.

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

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, 18214010 + ... + 18214013.

It is an arithmetic number, because the mean of its divisors is an integer number (27321018).

Almost surely, 2^72856046 is an apocalyptic number.

72856046 is a deficient number, since it is larger than the sum of its proper divisors (36428026).

72856046 is a wasteful number, since it uses less digits than its factorization.

72856046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36428025.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 72856046 is about 8535.5753174581. The cubic root of 72856046 is about 417.6590207814.

It can be divided in two parts, 7285 and 6046, that added together give a palindrome (13331).

The spelling of 72856046 in words is "seventy-two million, eight hundred fifty-six thousand, forty-six".