438872971 has 2 divisors, whose sum is σ = 438872972. Its totient is φ = 438872970.

The previous prime is 438872957. The next prime is 438873031. The reversal of 438872971 is 179278834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438872971 - 2⁷ = 438872843 is a prime.

It is not a weakly prime, because it can be changed into another prime (438872471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219436485 + 219436486.

It is an arithmetic number, because the mean of its divisors is an integer number (219436486).

Almost surely, 2^438872971 is an apocalyptic number.

438872971 is a deficient number, since it is larger than the sum of its proper divisors (1).

438872971 is an equidigital number, since it uses as much as digits as its factorization.

438872971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 49.

The square root of 438872971 is about 20949.2952387425. The cubic root of 438872971 is about 759.9405372452.

The spelling of 438872971 in words is "four hundred thirty-eight million, eight hundred seventy-two thousand, nine hundred seventy-one".