47669137 has 4 divisors (see below), whose sum is σ = 47698740. Its totient is φ = 47639536.

The previous prime is 47669117. The next prime is 47669143. The reversal of 47669137 is 73196674.

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 33651601 + 14017536 = 5801^2 + 3744^2 .

It is a cyclic number.

It is not a de Polignac number, because 47669137 - 2¹⁹ = 47144849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47669093 and 47669102.

It is not an unprimeable number, because it can be changed into a prime (47669117) 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, 12238 + ... + 15655.

It is an arithmetic number, because the mean of its divisors is an integer number (11924685).

Almost surely, 2^47669137 is an apocalyptic number.

It is an amenable number.

47669137 is a deficient number, since it is larger than the sum of its proper divisors (29603).

47669137 is a wasteful number, since it uses less digits than its factorization.

47669137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29602.

The product of its digits is 190512, while the sum is 43.

The square root of 47669137 is about 6904.2839599773. The cubic root of 47669137 is about 362.5871676228.

The spelling of 47669137 in words is "forty-seven million, six hundred sixty-nine thousand, one hundred thirty-seven".