493154839 has 2 divisors, whose sum is σ = 493154840. Its totient is φ = 493154838.

The previous prime is 493154807. The next prime is 493154867. The reversal of 493154839 is 938451394.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 493154839 - 2⁵ = 493154807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493154869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246577419 + 246577420.

It is an arithmetic number, because the mean of its divisors is an integer number (246577420).

Almost surely, 2^493154839 is an apocalyptic number.

493154839 is a deficient number, since it is larger than the sum of its proper divisors (1).

493154839 is an equidigital number, since it uses as much as digits as its factorization.

493154839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 493154839 is about 22207.0898363563. The cubic root of 493154839 is about 790.0618650479.

The spelling of 493154839 in words is "four hundred ninety-three million, one hundred fifty-four thousand, eight hundred thirty-nine".