86901661 has 16 divisors (see below), whose sum is σ = 112083840. Its totient is φ = 65378880.

The previous prime is 86901653. The next prime is 86901691. The reversal of 86901661 is 16610968.

It is not a de Polignac number, because 86901661 - 2³ = 86901653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86901661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86901691) 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 15 ways as a sum of consecutive naturals, for example, 17226 + ... + 21691.

It is an arithmetic number, because the mean of its divisors is an integer number (7005240).

Almost surely, 2^86901661 is an apocalyptic number.

It is an amenable number.

86901661 is a deficient number, since it is larger than the sum of its proper divisors (25182179).

86901661 is a wasteful number, since it uses less digits than its factorization.

86901661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38964.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 86901661 is about 9322.1060388734. The cubic root of 86901661 is about 442.9377471984.

The spelling of 86901661 in words is "eighty-six million, nine hundred one thousand, six hundred sixty-one".