86672109 has 4 divisors (see below), whose sum is σ = 115562816. Its totient is φ = 57781404.

The previous prime is 86672107. The next prime is 86672111. The reversal of 86672109 is 90127668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (86672107) and next prime (86672111).

It is not a de Polignac number, because 86672109 - 2¹ = 86672107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86672101) 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 in 3 ways as a sum of consecutive naturals, for example, 14445349 + ... + 14445354.

It is an arithmetic number, because the mean of its divisors is an integer number (28890704).

Almost surely, 2^86672109 is an apocalyptic number.

It is an amenable number.

86672109 is a deficient number, since it is larger than the sum of its proper divisors (28890707).

86672109 is a wasteful number, since it uses less digits than its factorization.

86672109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28890706.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 86672109 is about 9309.7856581127. The cubic root of 86672109 is about 442.5473944576.

The spelling of 86672109 in words is "eighty-six million, six hundred seventy-two thousand, one hundred nine".