3674527821 has 40 divisors (see below), whose sum is σ = 5698159104. Its totient is φ = 2358110880.

The previous prime is 3674527807. The next prime is 3674527859. The reversal of 3674527821 is 1287254763.

3674527821 is a `hidden beast` number, since 36 + 74 + 527 + 8 + 21 = 666.

It is not a de Polignac number, because 3674527821 - 2²² = 3670333517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3674527121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 224316 + ... + 240138.

Almost surely, 2^3674527821 is an apocalyptic number.

It is an amenable number.

3674527821 is a deficient number, since it is larger than the sum of its proper divisors (2023631283).

3674527821 is a wasteful number, since it uses less digits than its factorization.

3674527821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15943 (or 15934 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 3674527821 is about 60617.8836730548. The cubic root of 3674527821 is about 1543.1228895087.

The spelling of 3674527821 in words is "three billion, six hundred seventy-four million, five hundred twenty-seven thousand, eight hundred twenty-one".