2087194 has 4 divisors (see below), whose sum is σ = 3130794. Its totient is φ = 1043596.

The previous prime is 2087179. The next prime is 2087203. The reversal of 2087194 is 4917802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4917802 = 2 ⋅2458901.

It can be written as a sum of positive squares in only one way, i.e., 1113025 + 974169 = 1055^2 + 987^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521797 + ... + 521800.

2^2087194 is an apocalyptic number.

2087194 is a deficient number, since it is larger than the sum of its proper divisors (1043600).

2087194 is a wasteful number, since it uses less digits than its factorization.

2087194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043599.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2087194 is about 1444.7124281323. The cubic root of 2087194 is about 127.7970824575.

The spelling of 2087194 in words is "two million, eighty-seven thousand, one hundred ninety-four".