438499 has 2 divisors, whose sum is σ = 438500. Its totient is φ = 438498.

The previous prime is 438479. The next prime is 438517. The reversal of 438499 is 994834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438499 - 2⁵ = 438467 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (438409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219249 + 219250.

It is an arithmetic number, because the mean of its divisors is an integer number (219250).

2⁴³⁸⁴⁹⁹ is an apocalyptic number.

438499 is a deficient number, since it is larger than the sum of its proper divisors (1).

438499 is an equidigital number, since it uses as much as digits as its factorization.

438499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 438499 is about 662.1925701788. The cubic root of 438499 is about 75.9724623224.

It can be divided in two parts, 4 and 38499, that added together give a triangular number (38503 = T₂₇₇).

The spelling of 438499 in words is "four hundred thirty-eight thousand, four hundred ninety-nine".