47768569 has 4 divisors (see below), whose sum is σ = 47791744. Its totient is φ = 47745396.

The previous prime is 47768561. The next prime is 47768573. The reversal of 47768569 is 96586774.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96586774 = 2 ⋅48293387.

It is a cyclic number.

It is not a de Polignac number, because 47768569 - 2³ = 47768561 is a prime.

It is a super-2 number, since 2×47768569² = 4563672368615522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47768561) 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, 8157 + ... + 12730.

It is an arithmetic number, because the mean of its divisors is an integer number (11947936).

Almost surely, 2^47768569 is an apocalyptic number.

It is an amenable number.

47768569 is a deficient number, since it is larger than the sum of its proper divisors (23175).

47768569 is a wasteful number, since it uses less digits than its factorization.

47768569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23174.

The product of its digits is 2540160, while the sum is 52.

The square root of 47768569 is about 6911.4809556274. The cubic root of 47768569 is about 362.8390967276.

The spelling of 47768569 in words is "forty-seven million, seven hundred sixty-eight thousand, five hundred sixty-nine".