86445777 has 16 divisors (see below), whose sum is σ = 126590400. Its totient is φ = 52036800.

The previous prime is 86445773. The next prime is 86445787. The reversal of 86445777 is 77754468.

It is not a de Polignac number, because 86445777 - 2² = 86445773 is a prime.

It is a super-2 number, since 2×86445777² = 14945744722267458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86445773) 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, 3874 + ... + 13707.

It is an arithmetic number, because the mean of its divisors is an integer number (7911900).

Almost surely, 2^86445777 is an apocalyptic number.

It is an amenable number.

86445777 is a deficient number, since it is larger than the sum of its proper divisors (40144623).

86445777 is a wasteful number, since it uses less digits than its factorization.

86445777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17744.

The product of its digits is 1317120, while the sum is 48.

The square root of 86445777 is about 9297.6221153583. The cubic root of 86445777 is about 442.1618419362.

The spelling of 86445777 in words is "eighty-six million, four hundred forty-five thousand, seven hundred seventy-seven".