665087093 has 8 divisors (see below), whose sum is σ = 726071040. Its totient is φ = 604190080.

The previous prime is 665087057. The next prime is 665087119. The reversal of 665087093 is 390780566.

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

It is a cyclic number.

It is not a de Polignac number, because 665087093 - 2⁶ = 665087029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665087053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5180 + ... + 36837.

It is an arithmetic number, because the mean of its divisors is an integer number (90758880).

Almost surely, 2^665087093 is an apocalyptic number.

It is an amenable number.

665087093 is a deficient number, since it is larger than the sum of its proper divisors (60983947).

665087093 is a wasteful number, since it uses less digits than its factorization.

665087093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43467.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 665087093 is about 25789.2825220090. The cubic root of 665087093 is about 872.8899767616.

The spelling of 665087093 in words is "six hundred sixty-five million, eighty-seven thousand, ninety-three".