86672145 has 32 divisors (see below), whose sum is σ = 158982912. Its totient is φ = 39497472.

The previous prime is 86672143. The next prime is 86672147. The reversal of 86672145 is 54127668.

It is an interprime number because it is at equal distance from previous prime (86672143) and next prime (86672147).

It is not a de Polignac number, because 86672145 - 2¹ = 86672143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86672141) 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, 38059 + ... + 40271.

It is an arithmetic number, because the mean of its divisors is an integer number (4968216).

Almost surely, 2^86672145 is an apocalyptic number.

It is an amenable number.

86672145 is a deficient number, since it is larger than the sum of its proper divisors (72310767).

86672145 is a wasteful number, since it uses less digits than its factorization.

86672145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601.

The product of its digits is 80640, while the sum is 39.

The square root of 86672145 is about 9309.7875915619. The cubic root of 86672145 is about 442.5474557295.

The spelling of 86672145 in words is "eighty-six million, six hundred seventy-two thousand, one hundred forty-five".