86541777 has 32 divisors (see below), whose sum is σ = 148360960. Its totient is φ = 49443696.

The previous prime is 86541773. The next prime is 86541787. The reversal of 86541777 is 77714568.

It is not a de Polignac number, because 86541777 - 2² = 86541773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86541773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12483 + ... + 18135.

It is an arithmetic number, because the mean of its divisors is an integer number (4636280).

Almost surely, 2^86541777 is an apocalyptic number.

It is an amenable number.

86541777 is a deficient number, since it is larger than the sum of its proper divisors (61819183).

86541777 is an frugal number, since it uses more digits than its factorization.

86541777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681 (or 5663 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 86541777 is about 9302.7832931870. The cubic root of 86541777 is about 442.3254583094.

The spelling of 86541777 in words is "eighty-six million, five hundred forty-one thousand, seven hundred seventy-seven".