827418121 has 2 divisors, whose sum is σ = 827418122. Its totient is φ = 827418120.

The previous prime is 827418107. The next prime is 827418131. The reversal of 827418121 is 121814728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718508025 + 108910096 = 26805^2 + 10436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-827418121 is a prime.

It is not a weakly prime, because it can be changed into another prime (827418131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413709060 + 413709061.

It is an arithmetic number, because the mean of its divisors is an integer number (413709061).

Almost surely, 2^827418121 is an apocalyptic number.

It is an amenable number.

827418121 is a deficient number, since it is larger than the sum of its proper divisors (1).

827418121 is an equidigital number, since it uses as much as digits as its factorization.

827418121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 34.

The square root of 827418121 is about 28764.8765163350. The cubic root of 827418121 is about 938.8041685808.

The spelling of 827418121 in words is "eight hundred twenty-seven million, four hundred eighteen thousand, one hundred twenty-one".