86908149 has 6 divisors (see below), whose sum is σ = 125534006. Its totient is φ = 57938760.

The previous prime is 86908141. The next prime is 86908163. The reversal of 86908149 is 94180968.

It can be written as a sum of positive squares in only one way, i.e., 46991025 + 39917124 = 6855^2 + 6318^2 .

It is not a de Polignac number, because 86908149 - 2³ = 86908141 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 (86908141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4828222 + ... + 4828239.

Almost surely, 2^86908149 is an apocalyptic number.

It is an amenable number.

86908149 is a deficient number, since it is larger than the sum of its proper divisors (38625857).

86908149 is a wasteful number, since it uses less digits than its factorization.

86908149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656467 (or 9656464 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 86908149 is about 9322.4540224128. The cubic root of 86908149 is about 442.9487700356.

The spelling of 86908149 in words is "eighty-six million, nine hundred eight thousand, one hundred forty-nine".