494177239 has 2 divisors, whose sum is σ = 494177240. Its totient is φ = 494177238.

The previous prime is 494177237. The next prime is 494177303. The reversal of 494177239 is 932771494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494177239 - 2¹ = 494177237 is a prime.

It is a super-2 number, since 2×494177239² = 488422287091326242, which contains 22 as substring.

Together with 494177237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494177237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247088619 + 247088620.

It is an arithmetic number, because the mean of its divisors is an integer number (247088620).

Almost surely, 2^494177239 is an apocalyptic number.

494177239 is a deficient number, since it is larger than the sum of its proper divisors (1).

494177239 is an equidigital number, since it uses as much as digits as its factorization.

494177239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 46.

The square root of 494177239 is about 22230.0975931281. The cubic root of 494177239 is about 790.6074689963.

The spelling of 494177239 in words is "four hundred ninety-four million, one hundred seventy-seven thousand, two hundred thirty-nine".