1641028583 has 4 divisors (see below), whose sum is σ = 1645758120. Its totient is φ = 1636299048.

The previous prime is 1641028561. The next prime is 1641028591. The reversal of 1641028583 is 3858201461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3858201461 = 5023 ⋅768107.

It is a cyclic number.

It is not a de Polignac number, because 1641028583 - 2⁸ = 1641028327 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 (1641028783) 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, 2364248 + ... + 2364941.

It is an arithmetic number, because the mean of its divisors is an integer number (411439530).

Almost surely, 2^1641028583 is an apocalyptic number.

1641028583 is a deficient number, since it is larger than the sum of its proper divisors (4729537).

1641028583 is an equidigital number, since it uses as much as digits as its factorization.

1641028583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729536.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1641028583 is about 40509.6109954169. The cubic root of 1641028583 is about 1179.5201973008.

The spelling of 1641028583 in words is "one billion, six hundred forty-one million, twenty-eight thousand, five hundred eighty-three".