1916849 has 4 divisors (see below), whose sum is σ = 2091120. Its totient is φ = 1742580.

The previous prime is 1916839. The next prime is 1916857. The reversal of 1916849 is 9486191.

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.

It is a cyclic number.

It is not a de Polignac number, because 1916849 - 2⁴ = 1916833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1916809) 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, 87119 + ... + 87140.

It is an arithmetic number, because the mean of its divisors is an integer number (522780).

2^1916849 is an apocalyptic number.

It is an amenable number.

1916849 is a deficient number, since it is larger than the sum of its proper divisors (174271).

1916849 is a wasteful number, since it uses less digits than its factorization.

1916849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174270.

The product of its digits is 15552, while the sum is 38.

The square root of 1916849 is about 1384.5031599819. The cubic root of 1916849 is about 124.2212707200.

The spelling of 1916849 in words is "one million, nine hundred sixteen thousand, eight hundred forty-nine".