86806472 has 8 divisors (see below), whose sum is σ = 162762150. Its totient is φ = 43403232.

The previous prime is 86806469. The next prime is 86806493. The reversal of 86806472 is 27460868.

It can be written as a sum of positive squares in only one way, i.e., 82337476 + 4468996 = 9074^2 + 2114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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, 5425397 + ... + 5425412.

Almost surely, 2^86806472 is an apocalyptic number.

It is an amenable number.

86806472 is a deficient number, since it is larger than the sum of its proper divisors (75955678).

86806472 is a wasteful number, since it uses less digits than its factorization.

86806472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850815 (or 10850811 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 86806472 is about 9316.9990876891. Note that the first 3 decimals coincide. The cubic root of 86806472 is about 442.7759620087.

It can be divided in two parts, 86806 and 472, that added together give a palindrome (87278).

The spelling of 86806472 in words is "eighty-six million, eight hundred six thousand, four hundred seventy-two".