3005676421 has 12 divisors (see below), whose sum is σ = 3384345132. Its totient is φ = 2665784000.

The previous prime is 3005676419. The next prime is 3005676433. The reversal of 3005676421 is 1246765003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 625700196 + 2379976225 = 25014^2 + 48785^2 .

It is not a de Polignac number, because 3005676421 - 2¹ = 3005676419 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 (3005674421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297970 + ... + 307891.

It is an arithmetic number, because the mean of its divisors is an integer number (282028761).

Almost surely, 2^3005676421 is an apocalyptic number.

It is an amenable number.

3005676421 is a deficient number, since it is larger than the sum of its proper divisors (378668711).

3005676421 is a wasteful number, since it uses less digits than its factorization.

3005676421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605924 (or 605913 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 3005676421 is about 54824.0496588860. The cubic root of 3005676421 is about 1443.1586433779.

The spelling of 3005676421 in words is "three billion, five million, six hundred seventy-six thousand, four hundred twenty-one".