86776 has 8 divisors (see below), whose sum is σ = 162720. Its totient is φ = 43384.

The previous prime is 86771. The next prime is 86783. The reversal of 86776 is 67768.

86776 = 66² + 67² + ... + 81².

86776 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5416 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (20340).

2⁸⁶⁷⁷⁶ is an apocalyptic number.

It is an amenable number.

86776 is a deficient number, since it is larger than the sum of its proper divisors (75944).

86776 is a wasteful number, since it uses less digits than its factorization.

86776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853 (or 10849 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 86776 is about 294.5776637833. The cubic root of 86776 is about 44.2724146179.

The spelling of 86776 in words is "eighty-six thousand, seven hundred seventy-six".