438769 has 2 divisors, whose sum is σ = 438770. Its totient is φ = 438768.

The previous prime is 438761. The next prime is 438793. The reversal of 438769 is 967834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345744 + 93025 = 588^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 438769 - 2³ = 438761 is a prime.

It is a super-3 number, since 3×438769³ = 253413100833331827, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (438761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219384 + 219385.

It is an arithmetic number, because the mean of its divisors is an integer number (219385).

2⁴³⁸⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

438769 is a deficient number, since it is larger than the sum of its proper divisors (1).

438769 is an equidigital number, since it uses as much as digits as its factorization.

438769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 438769 is about 662.3964069951. The cubic root of 438769 is about 75.9880521384.

The spelling of 438769 in words is "four hundred thirty-eight thousand, seven hundred sixty-nine".