493721471 has 2 divisors, whose sum is σ = 493721472. Its totient is φ = 493721470.

The previous prime is 493721461. The next prime is 493721489. The reversal of 493721471 is 174127394.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493721471 is a prime.

It is a super-3 number, since 3×493721471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493721401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246860735 + 246860736.

It is an arithmetic number, because the mean of its divisors is an integer number (246860736).

Almost surely, 2^493721471 is an apocalyptic number.

493721471 is a deficient number, since it is larger than the sum of its proper divisors (1).

493721471 is an equidigital number, since it uses as much as digits as its factorization.

493721471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 493721471 is about 22219.8440813611. The cubic root of 493721471 is about 790.3643413699.

The spelling of 493721471 in words is "four hundred ninety-three million, seven hundred twenty-one thousand, four hundred seventy-one".