86703978 has 32 divisors (see below), whose sum is σ = 185690880. Its totient is φ = 26892800.

The previous prime is 86703959. The next prime is 86703979. The reversal of 86703978 is 87930768.

It is not an unprimeable number, because it can be changed into a prime (86703979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4303 + ... + 13853.

It is an arithmetic number, because the mean of its divisors is an integer number (5802840).

Almost surely, 2^86703978 is an apocalyptic number.

86703978 is an abundant number, since it is smaller than the sum of its proper divisors (98986902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86703978 is a wasteful number, since it uses less digits than its factorization.

86703978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 86703978 is about 9311.4970869351. The cubic root of 86703978 is about 442.6016288005.

The spelling of 86703978 in words is "eighty-six million, seven hundred three thousand, nine hundred seventy-eight".