72886642 has 8 divisors (see below), whose sum is σ = 112856832. Its totient is φ = 35267700.

The previous prime is 72886601. The next prime is 72886661. The reversal of 72886642 is 24668827.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 587734 + ... + 587857.

It is an arithmetic number, because the mean of its divisors is an integer number (14107104).

Almost surely, 2^72886642 is an apocalyptic number.

72886642 is a deficient number, since it is larger than the sum of its proper divisors (39970190).

72886642 is a wasteful number, since it uses less digits than its factorization.

72886642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175624.

The product of its digits is 258048, while the sum is 43.

The square root of 72886642 is about 8537.3673928208. The cubic root of 72886642 is about 417.7174780988.

The spelling of 72886642 in words is "seventy-two million, eight hundred eighty-six thousand, six hundred forty-two".