1916837 has 4 divisors (see below), whose sum is σ = 2064300. Its totient is φ = 1769376.

The previous prime is 1916833. The next prime is 1916839. The reversal of 1916837 is 7386191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83521 + 1833316 = 289^2 + 1354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1916837 - 2² = 1916833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1916797 and 1916806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916833) 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, 73712 + ... + 73737.

It is an arithmetic number, because the mean of its divisors is an integer number (516075).

2^1916837 is an apocalyptic number.

It is an amenable number.

1916837 is a deficient number, since it is larger than the sum of its proper divisors (147463).

1916837 is a wasteful number, since it uses less digits than its factorization.

1916837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147462.

The product of its digits is 9072, while the sum is 35.

The square root of 1916837 is about 1384.4988262906. The cubic root of 1916837 is about 124.2210114998.

The spelling of 1916837 in words is "one million, nine hundred sixteen thousand, eight hundred thirty-seven".