1084076221 has 4 divisors (see below), whose sum is σ = 1092351744. Its totient is φ = 1075800700.

The previous prime is 1084076183. The next prime is 1084076237. The reversal of 1084076221 is 1226704801.

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: 1226704801 = 7 ⋅175243543.

It is a cyclic number.

It is not a de Polignac number, because 1084076221 - 2⁷ = 1084076093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084076261) 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, 4137565 + ... + 4137826.

It is an arithmetic number, because the mean of its divisors is an integer number (273087936).

Almost surely, 2^1084076221 is an apocalyptic number.

It is an amenable number.

1084076221 is a deficient number, since it is larger than the sum of its proper divisors (8275523).

1084076221 is an equidigital number, since it uses as much as digits as its factorization.

1084076221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275522.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1084076221 is about 32925.3127699647. The cubic root of 1084076221 is about 1027.2747326348.

The spelling of 1084076221 in words is "one billion, eighty-four million, seventy-six thousand, two hundred twenty-one".