72805846 has 4 divisors (see below), whose sum is σ = 109208772. Its totient is φ = 36402922.

The previous prime is 72805841. The next prime is 72805861. The reversal of 72805846 is 64850827.

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

It is a junction number, because it is equal to n+sod(n) for n = 72805799 and 72805808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72805841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18201460 + ... + 18201463.

It is an arithmetic number, because the mean of its divisors is an integer number (27302193).

Almost surely, 2^72805846 is an apocalyptic number.

72805846 is a deficient number, since it is larger than the sum of its proper divisors (36402926).

72805846 is a wasteful number, since it uses less digits than its factorization.

72805846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36402925.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 72805846 is about 8532.6341770874. The cubic root of 72805846 is about 417.5630722118.

The spelling of 72805846 in words is "seventy-two million, eight hundred five thousand, eight hundred forty-six".