3867222949 has 2 divisors, whose sum is σ = 3867222950. Its totient is φ = 3867222948.

The previous prime is 3867222929. The next prime is 3867222971. The reversal of 3867222949 is 9492227683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2660702724 + 1206520225 = 51582^2 + 34735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3867222949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3867222896 and 3867222905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3867222929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933611474 + 1933611475.

It is an arithmetic number, because the mean of its divisors is an integer number (1933611475).

Almost surely, 2^3867222949 is an apocalyptic number.

It is an amenable number.

3867222949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3867222949 is an equidigital number, since it uses as much as digits as its factorization.

3867222949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 52.

The square root of 3867222949 is about 62186.9998391947. Note that the first 3 decimals coincide. The cubic root of 3867222949 is about 1569.6388406146.

The spelling of 3867222949 in words is "three billion, eight hundred sixty-seven million, two hundred twenty-two thousand, nine hundred forty-nine".