604232821 has 4 divisors (see below), whose sum is σ = 605038144. Its totient is φ = 603427500.

The previous prime is 604232773. The next prime is 604232831. The reversal of 604232821 is 128232406.

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 604232821 - 2⁷ = 604232693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 604232821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604232831) 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, 401535 + ... + 403036.

It is an arithmetic number, because the mean of its divisors is an integer number (151259536).

Almost surely, 2^604232821 is an apocalyptic number.

It is an amenable number.

604232821 is a deficient number, since it is larger than the sum of its proper divisors (805323).

604232821 is an equidigital number, since it uses as much as digits as its factorization.

604232821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805322.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 604232821 is about 24581.1476745900. The cubic root of 604232821 is about 845.4114080342.

The spelling of 604232821 in words is "six hundred four million, two hundred thirty-two thousand, eight hundred twenty-one".