86257755 has 12 divisors (see below), whose sum is σ = 149513520. Its totient is φ = 46004112.

The previous prime is 86257753. The next prime is 86257757. The reversal of 86257755 is 55775268.

It is an interprime number because it is at equal distance from previous prime (86257753) and next prime (86257757).

It is not a de Polignac number, because 86257755 - 2¹ = 86257753 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1916839 = 86257755 / (8 + 6 + 2 + 5 + 7 + 7 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 86257755.

It is not an unprimeable number, because it can be changed into a prime (86257753) 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 11 ways as a sum of consecutive naturals, for example, 958375 + ... + 958464.

It is an arithmetic number, because the mean of its divisors is an integer number (12459460).

Almost surely, 2^86257755 is an apocalyptic number.

86257755 is a deficient number, since it is larger than the sum of its proper divisors (63255765).

86257755 is a wasteful number, since it uses less digits than its factorization.

86257755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916850 (or 1916847 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 86257755 is about 9287.5053162838. The cubic root of 86257755 is about 441.8410377506.

The spelling of 86257755 in words is "eighty-six million, two hundred fifty-seven thousand, seven hundred fifty-five".