916393 has 4 divisors (see below), whose sum is σ = 923220. Its totient is φ = 909568.

The previous prime is 916387. The next prime is 916411. The reversal of 916393 is 393619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393619 = 167 ⋅2357.

It can be written as a sum of positive squares in 2 ways, for example, as 659344 + 257049 = 812^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 916393 - 2⁵ = 916361 is a prime.

It is a super-2 number, since 2×916393² = 1679552260898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (919393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3208 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (230805).

2⁹¹⁶³⁹³ is an apocalyptic number.

It is an amenable number.

916393 is a deficient number, since it is larger than the sum of its proper divisors (6827).

916393 is a wasteful number, since it uses less digits than its factorization.

916393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6826.

The product of its digits is 4374, while the sum is 31.

The square root of 916393 is about 957.2841793323. The cubic root of 916393 is about 97.1316100630.

The spelling of 916393 in words is "nine hundred sixteen thousand, three hundred ninety-three".