86746478 has 96 divisors (see below), whose sum is σ = 180605376. Its totient is φ = 30311424.

The previous prime is 86746469. The next prime is 86746489. The reversal of 86746478 is 87464768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1636700 + ... + 1636752.

It is an arithmetic number, because the mean of its divisors is an integer number (1881306).

Almost surely, 2^86746478 is an apocalyptic number.

86746478 is an abundant number, since it is smaller than the sum of its proper divisors (93858898).

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

86746478 is a wasteful number, since it uses less digits than its factorization.

86746478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 115 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The square root of 86746478 is about 9313.7789323131. The cubic root of 86746478 is about 442.6739341973.

The spelling of 86746478 in words is "eighty-six million, seven hundred forty-six thousand, four hundred seventy-eight".