86806473 has 32 divisors (see below), whose sum is σ = 127948800. Its totient is φ = 52024896.

The previous prime is 86806469. The next prime is 86806493. The reversal of 86806473 is 37460868.

It is not a de Polignac number, because 86806473 - 2² = 86806469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86806493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363088 + ... + 363326.

It is an arithmetic number, because the mean of its divisors is an integer number (3998400).

Almost surely, 2^86806473 is an apocalyptic number.

It is an amenable number.

86806473 is a deficient number, since it is larger than the sum of its proper divisors (41142327).

86806473 is a wasteful number, since it uses less digits than its factorization.

86806473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 86806473 is about 9316.9991413545. Note that the first 3 decimals coincide. The cubic root of 86806473 is about 442.7759637089.

The spelling of 86806473 in words is "eighty-six million, eight hundred six thousand, four hundred seventy-three".