1984081 has 4 divisors (see below), whose sum is σ = 2164464. Its totient is φ = 1803700.

The previous prime is 1984079. The next prime is 1984091. The reversal of 1984081 is 1804891.

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 1984081 - 2¹ = 1984079 is a prime.

It is a super-2 number, since 2×1984081² = 7873154829122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1984061) 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, 90175 + ... + 90196.

It is an arithmetic number, because the mean of its divisors is an integer number (541116).

2^1984081 is an apocalyptic number.

1984081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1984081 is a deficient number, since it is larger than the sum of its proper divisors (180383).

1984081 is a wasteful number, since it uses less digits than its factorization.

1984081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180382.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1984081 is about 1408.5741017071. The cubic root of 1984081 is about 125.6569360981.

It can be divided in two parts, 19 and 84081, that added together give a square (84100 = 290²).

The spelling of 1984081 in words is "one million, nine hundred eighty-four thousand, eighty-one".