86281544 has 8 divisors (see below), whose sum is σ = 161777910. Its totient is φ = 43140768.

The previous prime is 86281529. The next prime is 86281549. The reversal of 86281544 is 44518268.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 85340644 + 940900 = 9238^2 + 970^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 86281498 and 86281507.

It is not an unprimeable number, because it can be changed into a prime (86281549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5392589 + ... + 5392604.

Almost surely, 2^86281544 is an apocalyptic number.

It is an amenable number.

86281544 is a deficient number, since it is larger than the sum of its proper divisors (75496366).

86281544 is a wasteful number, since it uses less digits than its factorization.

86281544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10785199 (or 10785195 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 86281544 is about 9288.7859271274. The cubic root of 86281544 is about 441.8816524189.

The spelling of 86281544 in words is "eighty-six million, two hundred eighty-one thousand, five hundred forty-four".