3781879229 has 2 divisors, whose sum is σ = 3781879230. Its totient is φ = 3781879228.

The previous prime is 3781879181. The next prime is 3781879303. The reversal of 3781879229 is 9229781873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3285926329 + 495952900 = 57323^2 + 22270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3781879229 is a prime.

It is a super-2 number, since 2×3781879229² = 28605221005483268882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3781879429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890939614 + 1890939615.

It is an arithmetic number, because the mean of its divisors is an integer number (1890939615).

Almost surely, 2^3781879229 is an apocalyptic number.

It is an amenable number.

3781879229 is a deficient number, since it is larger than the sum of its proper divisors (1).

3781879229 is an equidigital number, since it uses as much as digits as its factorization.

3781879229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 56.

The square root of 3781879229 is about 61496.9855277476. The cubic root of 3781879229 is about 1558.0063329072.

The spelling of 3781879229 in words is "three billion, seven hundred eighty-one million, eight hundred seventy-nine thousand, two hundred twenty-nine".