86014778 has 4 divisors (see below), whose sum is σ = 129022170. Its totient is φ = 43007388.

The previous prime is 86014777. The next prime is 86014793. The reversal of 86014778 is 87741068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43072969 + 42941809 = 6563^2 + 6553^2 .

It is not an unprimeable number, because it can be changed into a prime (86014777) 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 as a sum of consecutive naturals, namely, 21503693 + ... + 21503696.

Almost surely, 2^86014778 is an apocalyptic number.

86014778 is a deficient number, since it is larger than the sum of its proper divisors (43007392).

86014778 is a wasteful number, since it uses less digits than its factorization.

86014778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43007391.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 86014778 is about 9274.4152376309. The cubic root of 86014778 is about 441.4257778060.

The spelling of 86014778 in words is "eighty-six million, fourteen thousand, seven hundred seventy-eight".