479691143 has 2 divisors, whose sum is σ = 479691144. Its totient is φ = 479691142.

The previous prime is 479691137. The next prime is 479691161. The reversal of 479691143 is 341196974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 479691143 - 2⁴ = 479691127 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 479691094 and 479691103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479691743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239845571 + 239845572.

It is an arithmetic number, because the mean of its divisors is an integer number (239845572).

Almost surely, 2^479691143 is an apocalyptic number.

479691143 is a deficient number, since it is larger than the sum of its proper divisors (1).

479691143 is an equidigital number, since it uses as much as digits as its factorization.

479691143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 479691143 is about 21901.8525015579. The cubic root of 479691143 is about 782.8055568855.

The spelling of 479691143 in words is "four hundred seventy-nine million, six hundred ninety-one thousand, one hundred forty-three".