3679452821 has 6 divisors (see below), whose sum is σ = 4044357366. Its totient is φ = 3344957000.

The previous prime is 3679452797. The next prime is 3679452823. The reversal of 3679452821 is 1282549763.

It can be written as a sum of positive squares in only one way, i.e., 3379678225 + 299774596 = 58135^2 + 17314^2 .

It is not a de Polignac number, because 3679452821 - 2⁶ = 3679452757 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 (3679452823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15204230 + ... + 15204471.

It is an arithmetic number, because the mean of its divisors is an integer number (674059561).

Almost surely, 2^3679452821 is an apocalyptic number.

It is an amenable number.

3679452821 is a deficient number, since it is larger than the sum of its proper divisors (364904545).

3679452821 is a wasteful number, since it uses less digits than its factorization.

3679452821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30408723 (or 30408712 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 3679452821 is about 60658.4933954018. The cubic root of 3679452821 is about 1543.8120018458.

The spelling of 3679452821 in words is "three billion, six hundred seventy-nine million, four hundred fifty-two thousand, eight hundred twenty-one".