916403 has 8 divisors (see below), whose sum is σ = 947856. Its totient is φ = 885600.

The previous prime is 916387. The next prime is 916411. The reversal of 916403 is 304619.

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 916403 - 2⁴ = 916387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (916463) 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, 4973 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (118482).

2⁹¹⁶⁴⁰³ is an apocalyptic number.

916403 is a deficient number, since it is larger than the sum of its proper divisors (31453).

916403 is a wasteful number, since it uses less digits than its factorization.

916403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 916403 is about 957.2894024275. The cubic root of 916403 is about 97.1319633731.

The spelling of 916403 in words is "nine hundred sixteen thousand, four hundred three".