86078774 has 4 divisors (see below), whose sum is σ = 129118164. Its totient is φ = 43039386.

The previous prime is 86078771. The next prime is 86078777. The reversal of 86078774 is 47787068.

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

It is an interprime number because it is at equal distance from previous prime (86078771) and next prime (86078777).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86078771) 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, 21519692 + ... + 21519695.

It is an arithmetic number, because the mean of its divisors is an integer number (32279541).

Almost surely, 2^86078774 is an apocalyptic number.

86078774 is a deficient number, since it is larger than the sum of its proper divisors (43039390).

86078774 is a wasteful number, since it uses less digits than its factorization.

86078774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43039389.

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 86078774 is about 9277.8647327928. The cubic root of 86078774 is about 441.5352259793.

The spelling of 86078774 in words is "eighty-six million, seventy-eight thousand, seven hundred seventy-four".