85675909 has 16 divisors (see below), whose sum is σ = 98740224. Its totient is φ = 73609200.

The previous prime is 85675901. The next prime is 85675949. The reversal of 85675909 is 90957658.

It is a cyclic number.

It is not a de Polignac number, because 85675909 - 2³ = 85675901 is a prime.

It is a super-2 number, since 2×85675909² = 14680722765952562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85675901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11742 + ... + 17584.

It is an arithmetic number, because the mean of its divisors is an integer number (6171264).

Almost surely, 2^85675909 is an apocalyptic number.

It is an amenable number.

85675909 is a deficient number, since it is larger than the sum of its proper divisors (13064315).

85675909 is a wasteful number, since it uses less digits than its factorization.

85675909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 85675909 is about 9256.1281862342. The cubic root of 85675909 is about 440.8453256823.

The spelling of 85675909 in words is "eighty-five million, six hundred seventy-five thousand, nine hundred nine".