916449 has 4 divisors (see below), whose sum is σ = 1221936. Its totient is φ = 610964.

The previous prime is 916441. The next prime is 916451. The reversal of 916449 is 944619.

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.

It is a cyclic number.

It is not a de Polignac number, because 916449 - 2³ = 916441 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (916441) 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, 152739 + ... + 152744.

It is an arithmetic number, because the mean of its divisors is an integer number (305484).

2⁹¹⁶⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

916449 is a deficient number, since it is larger than the sum of its proper divisors (305487).

916449 is a wasteful number, since it uses less digits than its factorization.

916449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305486.

The product of its digits is 7776, while the sum is 33.

The square root of 916449 is about 957.3134282982. The cubic root of 916449 is about 97.1335885662.

The spelling of 916449 in words is "nine hundred sixteen thousand, four hundred forty-nine".