86607661 has 4 divisors (see below), whose sum is σ = 98980192. Its totient is φ = 74235132.

The previous prime is 86607641. The next prime is 86607679. The reversal of 86607661 is 16670668.

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 a cyclic number.

It is not a de Polignac number, because 86607661 - 2⁷ = 86607533 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 (86607611) 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, 6186255 + ... + 6186268.

It is an arithmetic number, because the mean of its divisors is an integer number (24745048).

Almost surely, 2^86607661 is an apocalyptic number.

It is an amenable number.

86607661 is a deficient number, since it is larger than the sum of its proper divisors (12372531).

86607661 is a wasteful number, since it uses less digits than its factorization.

86607661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12372530.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 86607661 is about 9306.3237102521. The cubic root of 86607661 is about 442.4376768600.

The spelling of 86607661 in words is "eighty-six million, six hundred seven thousand, six hundred sixty-one".