72814886 has 4 divisors (see below), whose sum is σ = 109222332. Its totient is φ = 36407442.

The previous prime is 72814883. The next prime is 72814913. The reversal of 72814886 is 68841827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68841827 = 1117 ⋅61631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72814883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18203720 + ... + 18203723.

It is an arithmetic number, because the mean of its divisors is an integer number (27305583).

Almost surely, 2^72814886 is an apocalyptic number.

72814886 is a deficient number, since it is larger than the sum of its proper divisors (36407446).

72814886 is a wasteful number, since it uses less digits than its factorization.

72814886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36407445.

The product of its digits is 172032, while the sum is 44.

The square root of 72814886 is about 8533.1638915469. The cubic root of 72814886 is about 417.5803538550.

It can be divided in two parts, 7281 and 4886, that added together give a cube (12167 = 23³).

The spelling of 72814886 in words is "seventy-two million, eight hundred fourteen thousand, eight hundred eighty-six".