919049 has 4 divisors (see below), whose sum is σ = 967440. Its totient is φ = 870660.

The previous prime is 919033. The next prime is 919063. The reversal of 919049 is 940919.

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: 940919 = 7 ⋅134417.

It is a cyclic number.

It is not a de Polignac number, because 919049 - 2⁴ = 919033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (919019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24167 + ... + 24204.

It is an arithmetic number, because the mean of its divisors is an integer number (241860).

2⁹¹⁹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

919049 is a deficient number, since it is larger than the sum of its proper divisors (48391).

919049 is a wasteful number, since it uses less digits than its factorization.

919049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48390.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 919049 is about 958.6704334650. The cubic root of 919049 is about 97.2253590401.

The spelling of 919049 in words is "nine hundred nineteen thousand, forty-nine".