47818469 has 2 divisors, whose sum is σ = 47818470. Its totient is φ = 47818468.

The previous prime is 47818453. The next prime is 47818481. The reversal of 47818469 is 96481874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47789569 + 28900 = 6913^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 47818469 - 2⁴ = 47818453 is a prime.

It is a super-2 number, since 2×47818469² = 4573211955007922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47811469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23909234 + 23909235.

It is an arithmetic number, because the mean of its divisors is an integer number (23909235).

Almost surely, 2^47818469 is an apocalyptic number.

It is an amenable number.

47818469 is a deficient number, since it is larger than the sum of its proper divisors (1).

47818469 is an equidigital number, since it uses as much as digits as its factorization.

47818469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The square root of 47818469 is about 6915.0899488004. The cubic root of 47818469 is about 362.9653957456.

The spelling of 47818469 in words is "forty-seven million, eight hundred eighteen thousand, four hundred sixty-nine".