85665392 has 10 divisors (see below), whose sum is σ = 165976728. Its totient is φ = 42832688.

The previous prime is 85665361. The next prime is 85665407. The reversal of 85665392 is 29356658.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2677028 + ... + 2677059.

Almost surely, 2^85665392 is an apocalyptic number.

It is an amenable number.

85665392 is a deficient number, since it is larger than the sum of its proper divisors (80311336).

85665392 is a wasteful number, since it uses less digits than its factorization.

85665392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354095 (or 5354089 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 85665392 is about 9255.5600586890. The cubic root of 85665392 is about 440.8272865389.

The spelling of 85665392 in words is "eighty-five million, six hundred sixty-five thousand, three hundred ninety-two".