86475909 has 16 divisors (see below), whose sum is σ = 124353152. Its totient is φ = 53137728.

The previous prime is 86475869. The next prime is 86475937. The reversal of 86475909 is 90957468.

It is not a de Polignac number, because 86475909 - 2¹² = 86471813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86475959) 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 15 ways as a sum of consecutive naturals, for example, 36567 + ... + 38859.

It is an arithmetic number, because the mean of its divisors is an integer number (7772072).

Almost surely, 2^86475909 is an apocalyptic number.

It is an amenable number.

86475909 is a deficient number, since it is larger than the sum of its proper divisors (37877243).

86475909 is a wasteful number, since it uses less digits than its factorization.

86475909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 86475909 is about 9299.2423884960. The cubic root of 86475909 is about 442.2132100631.

The spelling of 86475909 in words is "eighty-six million, four hundred seventy-five thousand, nine hundred nine".