3138807827 has 2 divisors, whose sum is σ = 3138807828. Its totient is φ = 3138807826.

The previous prime is 3138807821. The next prime is 3138807839. The reversal of 3138807827 is 7287088313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3138807827 is a prime.

It is a super-2 number, since 2×3138807827² = 19704229149672923858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3138807821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569403913 + 1569403914.

It is an arithmetic number, because the mean of its divisors is an integer number (1569403914).

Almost surely, 2^3138807827 is an apocalyptic number.

3138807827 is a deficient number, since it is larger than the sum of its proper divisors (1).

3138807827 is an equidigital number, since it uses as much as digits as its factorization.

3138807827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 3138807827 is about 56025.0642748404. The cubic root of 3138807827 is about 1464.1590030740.

The spelling of 3138807827 in words is "three billion, one hundred thirty-eight million, eight hundred seven thousand, eight hundred twenty-seven".