438960997 has 2 divisors, whose sum is σ = 438960998. Its totient is φ = 438960996.

The previous prime is 438960989. The next prime is 438961013. The reversal of 438960997 is 799069834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275095396 + 163865601 = 16586^2 + 12801^2 .

It is a cyclic number.

It is not a de Polignac number, because 438960997 - 2³ = 438960989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438960917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219480498 + 219480499.

It is an arithmetic number, because the mean of its divisors is an integer number (219480499).

Almost surely, 2^438960997 is an apocalyptic number.

It is an amenable number.

438960997 is a deficient number, since it is larger than the sum of its proper divisors (1).

438960997 is an equidigital number, since it uses as much as digits as its factorization.

438960997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 438960997 is about 20951.3960632699. The cubic root of 438960997 is about 759.9913416604.

The spelling of 438960997 in words is "four hundred thirty-eight million, nine hundred sixty thousand, nine hundred ninety-seven".