3774082021 has 6 divisors (see below), whose sum is σ = 3868379666. Its totient is φ = 3682029600.

The previous prime is 3774081959. The next prime is 3774082031. The reversal of 3774082021 is 1202804773.

It can be written as a sum of positive squares in 3 ways, for example, as 1061130625 + 2712951396 = 32575^2 + 52086^2 .

It is not a de Polignac number, because 3774082021 - 2¹³ = 3774073829 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 (3774082031) 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, 1120890 + ... + 1124251.

Almost surely, 2^3774082021 is an apocalyptic number.

It is an amenable number.

3774082021 is a deficient number, since it is larger than the sum of its proper divisors (94297645).

3774082021 is an equidigital number, since it uses as much as digits as its factorization.

3774082021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245223 (or 2245182 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 3774082021 is about 61433.5577758606. The cubic root of 3774082021 is about 1556.9348675521.

Adding to 3774082021 its reverse (1202804773), we get a palindrome (4976886794).

The spelling of 3774082021 in words is "three billion, seven hundred seventy-four million, eighty-two thousand, twenty-one".