86722078 has 8 divisors (see below), whose sum is σ = 130141800. Its totient is φ = 43341480.

The previous prime is 86722073. The next prime is 86722081. The reversal of 86722078 is 87022768.

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 86722078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86722073) 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, 3408 + ... + 13603.

It is an arithmetic number, because the mean of its divisors is an integer number (16267725).

Almost surely, 2^86722078 is an apocalyptic number.

86722078 is a deficient number, since it is larger than the sum of its proper divisors (43419722).

86722078 is a wasteful number, since it uses less digits than its factorization.

86722078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19562.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 86722078 is about 9312.4689529684. The cubic root of 86722078 is about 442.6324252810.

The spelling of 86722078 in words is "eighty-six million, seven hundred twenty-two thousand, seventy-eight".