47212669 has 4 divisors (see below), whose sum is σ = 53957344. Its totient is φ = 40467996.

The previous prime is 47212661. The next prime is 47212673. The reversal of 47212669 is 96621274.

47212669 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, 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 47212669 - 2³ = 47212661 is a prime.

It is a super-2 number, since 2×47212669² = 4458072228207122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47212661) 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, 3372327 + ... + 3372340.

It is an arithmetic number, because the mean of its divisors is an integer number (13489336).

Almost surely, 2^47212669 is an apocalyptic number.

It is an amenable number.

47212669 is a deficient number, since it is larger than the sum of its proper divisors (6744675).

47212669 is an equidigital number, since it uses as much as digits as its factorization.

47212669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744674.

The product of its digits is 36288, while the sum is 37.

The square root of 47212669 is about 6871.1475751871. The cubic root of 47212669 is about 361.4261049952.

The spelling of 47212669 in words is "forty-seven million, two hundred twelve thousand, six hundred sixty-nine".