47767669 has 4 divisors (see below), whose sum is σ = 49414860. Its totient is φ = 46120480.

The previous prime is 47767667. The next prime is 47767679. The reversal of 47767669 is 96676774.

47767669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30669444 + 17098225 = 5538^2 + 4135^2 .

It is a cyclic number.

It is not a de Polignac number, because 47767669 - 2¹ = 47767667 is a prime.

It is a super-2 number, since 2×47767669² = 4563500403387122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47767661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823552 + ... + 823609.

It is an arithmetic number, because the mean of its divisors is an integer number (12353715).

Almost surely, 2^47767669 is an apocalyptic number.

It is an amenable number.

47767669 is a deficient number, since it is larger than the sum of its proper divisors (1647191).

47767669 is a wasteful number, since it uses less digits than its factorization.

47767669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647190.

The product of its digits is 2667168, while the sum is 52.

The square root of 47767669 is about 6911.4158462648. The cubic root of 47767669 is about 362.8368179821.

The spelling of 47767669 in words is "forty-seven million, seven hundred sixty-seven thousand, six hundred sixty-nine".