493436129 has 4 divisors (see below), whose sum is σ = 495312576. Its totient is φ = 491559684.

The previous prime is 493436113. The next prime is 493436143. The reversal of 493436129 is 921634394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 493436129 - 2⁴ = 493436113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493436149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937829 + ... + 938354.

It is an arithmetic number, because the mean of its divisors is an integer number (123828144).

Almost surely, 2^493436129 is an apocalyptic number.

It is an amenable number.

493436129 is a deficient number, since it is larger than the sum of its proper divisors (1876447).

493436129 is a wasteful number, since it uses less digits than its factorization.

493436129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876446.

The product of its digits is 139968, while the sum is 41.

The square root of 493436129 is about 22213.4222712305. The cubic root of 493436129 is about 790.2120506448.

The spelling of 493436129 in words is "four hundred ninety-three million, four hundred thirty-six thousand, one hundred twenty-nine".