2194587 has 8 divisors (see below), whose sum is σ = 3251280. Its totient is φ = 1463040.

The previous prime is 2194579. The next prime is 2194613. The reversal of 2194587 is 7854912.

It is not a de Polignac number, because 2194587 - 2³ = 2194579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2194537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40614 + ... + 40667.

It is an arithmetic number, because the mean of its divisors is an integer number (406410).

2^2194587 is an apocalyptic number.

2194587 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2194587 is a deficient number, since it is larger than the sum of its proper divisors (1056693).

2194587 is an equidigital number, since it uses as much as digits as its factorization.

2194587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81290 (or 81284 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 2194587 is about 1481.4138516971. The cubic root of 2194587 is about 129.9523888767.

The spelling of 2194587 in words is "two million, one hundred ninety-four thousand, five hundred eighty-seven".