86915545 has 8 divisors (see below), whose sum is σ = 106008840. Its totient is φ = 68392320.

The previous prime is 86915539. The next prime is 86915567. The reversal of 86915545 is 54551968.

It can be written as a sum of positive squares in 4 ways, for example, as 258064 + 86657481 = 508^2 + 9309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86915545 - 2¹⁵ = 86882777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142180 + ... + 142789.

It is an arithmetic number, because the mean of its divisors is an integer number (13251105).

Almost surely, 2^86915545 is an apocalyptic number.

It is an amenable number.

86915545 is a deficient number, since it is larger than the sum of its proper divisors (19093295).

86915545 is a wasteful number, since it uses less digits than its factorization.

86915545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285035.

The product of its digits is 216000, while the sum is 43.

The square root of 86915545 is about 9322.8506906418. The cubic root of 86915545 is about 442.9613348573.

The spelling of 86915545 in words is "eighty-six million, nine hundred fifteen thousand, five hundred forty-five".