438822971 has 2 divisors, whose sum is σ = 438822972. Its totient is φ = 438822970.

The previous prime is 438822947. The next prime is 438823013. The reversal of 438822971 is 179228834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438822971 - 2¹⁴ = 438806587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (438822941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219411485 + 219411486.

It is an arithmetic number, because the mean of its divisors is an integer number (219411486).

Almost surely, 2^438822971 is an apocalyptic number.

438822971 is a deficient number, since it is larger than the sum of its proper divisors (1).

438822971 is an equidigital number, since it uses as much as digits as its factorization.

438822971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 438822971 is about 20948.1018471842. The cubic root of 438822971 is about 759.9116766011.

The spelling of 438822971 in words is "four hundred thirty-eight million, eight hundred twenty-two thousand, nine hundred seventy-one".