493578031 has 4 divisors (see below), whose sum is σ = 493892200. Its totient is φ = 493263864.

The previous prime is 493577993. The next prime is 493578061. The reversal of 493578031 is 130875394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 493578031 - 2²³ = 485189423 is a prime.

It is a super-2 number, since 2×493578031² = 487238545371673922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493578061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154716 + ... + 157873.

It is an arithmetic number, because the mean of its divisors is an integer number (123473050).

Almost surely, 2^493578031 is an apocalyptic number.

493578031 is a deficient number, since it is larger than the sum of its proper divisors (314169).

493578031 is a wasteful number, since it uses less digits than its factorization.

493578031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314168.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 493578031 is about 22216.6161014678. The cubic root of 493578031 is about 790.2877929186.

The spelling of 493578031 in words is "four hundred ninety-three million, five hundred seventy-eight thousand, thirty-one".