916089 has 4 divisors (see below), whose sum is σ = 1221456. Its totient is φ = 610724.

The previous prime is 916073. The next prime is 916099. The reversal of 916089 is 980619.

916089 = T₃₁₀ + T₃₁₁ + ... + T₃₂₇.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 980619 = 3 ⋅326873.

It is a cyclic number.

It is not a de Polignac number, because 916089 - 2⁴ = 916073 is a prime.

It is a D-number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (916049) 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, 152679 + ... + 152684.

It is an arithmetic number, because the mean of its divisors is an integer number (305364).

2⁹¹⁶⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

916089 is a deficient number, since it is larger than the sum of its proper divisors (305367).

916089 is a wasteful number, since it uses less digits than its factorization.

916089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305366.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 916089 is about 957.1253836358. The cubic root of 916089 is about 97.1208682105.

The spelling of 916089 in words is "nine hundred sixteen thousand, eighty-nine".