47808069 has 4 divisors (see below), whose sum is σ = 63744096. Its totient is φ = 31872044.

The previous prime is 47808049. The next prime is 47808109. The reversal of 47808069 is 96080874.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47808069 - 2⁷ = 47807941 is a prime.

It is a super-2 number, since 2×47808069² = 4571222923017522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47808069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47808049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7968009 + ... + 7968014.

It is an arithmetic number, because the mean of its divisors is an integer number (15936024).

Almost surely, 2^47808069 is an apocalyptic number.

It is an amenable number.

47808069 is a deficient number, since it is larger than the sum of its proper divisors (15936027).

47808069 is a wasteful number, since it uses less digits than its factorization.

47808069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936026.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 47808069 is about 6914.3379292597. The cubic root of 47808069 is about 362.9390801547.

The spelling of 47808069 in words is "forty-seven million, eight hundred eight thousand, sixty-nine".