493847999 has 2 divisors, whose sum is σ = 493848000. Its totient is φ = 493847998.

The previous prime is 493847947. The next prime is 493848001. The reversal of 493847999 is 999748394.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 493847999 - 2¹⁶ = 493782463 is a prime.

It is a super-2 number, since 2×493847999² = 487771692232608002, which contains 22 as substring.

Together with 493848001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493844999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246923999 + 246924000.

It is an arithmetic number, because the mean of its divisors is an integer number (246924000).

Almost surely, 2^493847999 is an apocalyptic number.

493847999 is a deficient number, since it is larger than the sum of its proper divisors (1).

493847999 is an equidigital number, since it uses as much as digits as its factorization.

493847999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 62.

The square root of 493847999 is about 22222.6910836649. The cubic root of 493847999 is about 790.4318522262.

The spelling of 493847999 in words is "four hundred ninety-three million, eight hundred forty-seven thousand, nine hundred ninety-nine".