86242078 has 16 divisors (see below), whose sum is σ = 139688640. Its totient is φ = 39697056.

The previous prime is 86242073. The next prime is 86242081. The reversal of 86242078 is 87024268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86242073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5851 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (8730540).

Almost surely, 2^86242078 is an apocalyptic number.

86242078 is a deficient number, since it is larger than the sum of its proper divisors (53446562).

86242078 is a wasteful number, since it uses less digits than its factorization.

86242078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8931.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 86242078 is about 9286.6612945665. The cubic root of 86242078 is about 441.8142685184.

The spelling of 86242078 in words is "eighty-six million, two hundred forty-two thousand, seventy-eight".