85455688 has 8 divisors (see below), whose sum is σ = 160229430. Its totient is φ = 42727840.

The previous prime is 85455593. The next prime is 85455697. The reversal of 85455688 is 88655458.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 10771524 = 8642^2 + 3282^2 .

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

It is a super-2 number, since 2×85455688² = 14605349223106688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5340973 + ... + 5340988.

Almost surely, 2^85455688 is an apocalyptic number.

It is an amenable number.

85455688 is a deficient number, since it is larger than the sum of its proper divisors (74773742).

85455688 is a wasteful number, since it uses less digits than its factorization.

85455688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681967 (or 10681963 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 49.

The square root of 85455688 is about 9244.2245753768. The cubic root of 85455688 is about 440.4672859295.

The spelling of 85455688 in words is "eighty-five million, four hundred fifty-five thousand, six hundred eighty-eight".