418523047 has 2 divisors, whose sum is σ = 418523048. Its totient is φ = 418523046.

The previous prime is 418523029. The next prime is 418523057. The reversal of 418523047 is 740325814.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-418523047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418523057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209261523 + 209261524.

It is an arithmetic number, because the mean of its divisors is an integer number (209261524).

Almost surely, 2^418523047 is an apocalyptic number.

418523047 is a deficient number, since it is larger than the sum of its proper divisors (1).

418523047 is an equidigital number, since it uses as much as digits as its factorization.

418523047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 418523047 is about 20457.8358337337. The cubic root of 418523047 is about 748.0083733942.

The spelling of 418523047 in words is "four hundred eighteen million, five hundred twenty-three thousand, forty-seven".