493772819 has 2 divisors, whose sum is σ = 493772820. Its totient is φ = 493772818.

The previous prime is 493772813. The next prime is 493772843. The reversal of 493772819 is 918277394.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 493772819 - 2⁸ = 493772563 is a prime.

It is a super-4 number, since 4×493772819⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (493772813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246886409 + 246886410.

It is an arithmetic number, because the mean of its divisors is an integer number (246886410).

Almost surely, 2^493772819 is an apocalyptic number.

493772819 is a deficient number, since it is larger than the sum of its proper divisors (1).

493772819 is an equidigital number, since it uses as much as digits as its factorization.

493772819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 50.

The square root of 493772819 is about 22220.9995049728. Note that the first 3 decimals coincide. The cubic root of 493772819 is about 790.3917402332.

The spelling of 493772819 in words is "four hundred ninety-three million, seven hundred seventy-two thousand, eight hundred nineteen".