86677861 has 4 divisors (see below), whose sum is σ = 86716224. Its totient is φ = 86639500.

The previous prime is 86677859. The next prime is 86677873. The reversal of 86677861 is 16877668.

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 86677861 - 2¹ = 86677859 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 (86677831) 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, 15565 + ... + 20386.

It is an arithmetic number, because the mean of its divisors is an integer number (21679056).

Almost surely, 2^86677861 is an apocalyptic number.

It is an amenable number.

86677861 is a deficient number, since it is larger than the sum of its proper divisors (38363).

86677861 is a wasteful number, since it uses less digits than its factorization.

86677861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38362.

The product of its digits is 677376, while the sum is 49.

The square root of 86677861 is about 9310.0945752447. The cubic root of 86677861 is about 442.5571841363.

The spelling of 86677861 in words is "eighty-six million, six hundred seventy-seven thousand, eight hundred sixty-one".