913939 has 8 divisors (see below), whose sum is σ = 991760. Its totient is φ = 837216.

The previous prime is 913933. The next prime is 913943. The reversal of 913939 is 939319.

It is a happy number.

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 913939 - 2⁵ = 913907 is a prime.

It is a Duffinian number.

913939 is a modest number, since divided by 3939 gives 91 as remainder.

It is not an unprimeable number, because it can be changed into a prime (913933) 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 7 ways as a sum of consecutive naturals, for example, 2824 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (123970).

2⁹¹³⁹³⁹ is an apocalyptic number.

913939 is a deficient number, since it is larger than the sum of its proper divisors (77821).

913939 is a wasteful number, since it uses less digits than its factorization.

913939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549.

The product of its digits is 6561, while the sum is 34.

The square root of 913939 is about 956.0015690364. The cubic root of 913939 is about 97.0448299529.

The spelling of 913939 in words is "nine hundred thirteen thousand, nine hundred thirty-nine".