72846394 has 8 divisors (see below), whose sum is σ = 115697268. Its totient is φ = 34280640.

The previous prime is 72846391. The next prime is 72846401. The reversal of 72846394 is 49364827.

It can be written as a sum of positive squares in 2 ways, for example, as 72846225 + 169 = 8535^2 + 13^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 72846394.

It is not an unprimeable number, because it can be changed into a prime (72846391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071237 + ... + 1071304.

Almost surely, 2^72846394 is an apocalyptic number.

72846394 is a deficient number, since it is larger than the sum of its proper divisors (42850874).

72846394 is a wasteful number, since it uses less digits than its factorization.

72846394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142560.

The product of its digits is 290304, while the sum is 43.

The square root of 72846394 is about 8535.0099004043. The cubic root of 72846394 is about 417.6405760852.

The spelling of 72846394 in words is "seventy-two million, eight hundred forty-six thousand, three hundred ninety-four".