86302978 has 16 divisors (see below), whose sum is σ = 139439520. Its totient is φ = 39928896.

The previous prime is 86302973. The next prime is 86303003. The reversal of 86302978 is 87920368.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (86302973) 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, 24775 + ... + 28042.

It is an arithmetic number, because the mean of its divisors is an integer number (8714970).

Almost surely, 2^86302978 is an apocalyptic number.

86302978 is a deficient number, since it is larger than the sum of its proper divisors (53136542).

86302978 is a wasteful number, since it uses less digits than its factorization.

86302978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52881.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 86302978 is about 9289.9396122903. The cubic root of 86302978 is about 441.9182400317.

The spelling of 86302978 in words is "eighty-six million, three hundred two thousand, nine hundred seventy-eight".