5628045821 has 4 divisors (see below), whose sum is σ = 5707314144. Its totient is φ = 5548777500.

The previous prime is 5628045817. The next prime is 5628045847. The reversal of 5628045821 is 1285408265.

It is a happy number.

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 5628045821 - 2² = 5628045817 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 (5628045811) 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, 39634055 + ... + 39634196.

It is an arithmetic number, because the mean of its divisors is an integer number (1426828536).

Almost surely, 2^5628045821 is an apocalyptic number.

It is an amenable number.

5628045821 is a deficient number, since it is larger than the sum of its proper divisors (79268323).

5628045821 is an equidigital number, since it uses as much as digits as its factorization.

5628045821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79268322.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 5628045821 is about 75020.3027253290. The cubic root of 5628045821 is about 1778.7675916675.

The spelling of 5628045821 in words is "five billion, six hundred twenty-eight million, forty-five thousand, eight hundred twenty-one".