913665 has 16 divisors (see below), whose sum is σ = 1548288. Its totient is φ = 458496.

The previous prime is 913639. The next prime is 913687. The reversal of 913665 is 566319.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-913665 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (96768).

2⁹¹³⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

913665 is a deficient number, since it is larger than the sum of its proper divisors (634623).

913665 is a wasteful number, since it uses less digits than its factorization.

913665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608.

The product of its digits is 4860, while the sum is 30.

The square root of 913665 is about 955.8582530899. The cubic root of 913665 is about 97.0351309317.

The spelling of 913665 in words is "nine hundred thirteen thousand, six hundred sixty-five".