1986041 has 4 divisors (see below), whose sum is σ = 2032272. Its totient is φ = 1939812.

The previous prime is 1986037. The next prime is 1986043. The reversal of 1986041 is 1406891.

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: 1406891 = 503 ⋅2797.

It is a cyclic number.

It is not a de Polignac number, because 1986041 - 2² = 1986037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1985995 and 1986013.

It is not an unprimeable number, because it can be changed into a prime (1986043) 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, 23051 + ... + 23136.

It is an arithmetic number, because the mean of its divisors is an integer number (508068).

2^1986041 is an apocalyptic number.

It is an amenable number.

1986041 is a deficient number, since it is larger than the sum of its proper divisors (46231).

1986041 is an equidigital number, since it uses as much as digits as its factorization.

1986041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46230.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1986041 is about 1409.2696690130. The cubic root of 1986041 is about 125.6982997555.

The spelling of 1986041 in words is "one million, nine hundred eighty-six thousand, forty-one".