913689 has 12 divisors (see below), whose sum is σ = 1508416. Its totient is φ = 522072.

The previous prime is 913687. The next prime is 913709. The reversal of 913689 is 986319.

It is not a de Polignac number, because 913689 - 2¹ = 913687 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (913687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7189 + ... + 7314.

2⁹¹³⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

913689 is a deficient number, since it is larger than the sum of its proper divisors (594727).

913689 is a wasteful number, since it uses less digits than its factorization.

913689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14516 (or 14513 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 913689 is about 955.8708071701. The cubic root of 913689 is about 97.0359805585.

It can be divided in two parts, 9 and 13689, that multiplied together give a square (123201 = 351²).

The spelling of 913689 in words is "nine hundred thirteen thousand, six hundred eighty-nine".