493612861 has 4 divisors (see below), whose sum is σ = 564128992. Its totient is φ = 423096732.

The previous prime is 493612859. The next prime is 493612871. The reversal of 493612861 is 168216394.

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 493612861 - 2¹ = 493612859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493612811) 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, 35258055 + ... + 35258068.

It is an arithmetic number, because the mean of its divisors is an integer number (141032248).

Almost surely, 2^493612861 is an apocalyptic number.

It is an amenable number.

493612861 is a deficient number, since it is larger than the sum of its proper divisors (70516131).

493612861 is an equidigital number, since it uses as much as digits as its factorization.

493612861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70516130.

The product of its digits is 62208, while the sum is 40.

The square root of 493612861 is about 22217.3999603914. The cubic root of 493612861 is about 790.3063817230.

The spelling of 493612861 in words is "four hundred ninety-three million, six hundred twelve thousand, eight hundred sixty-one".