47229537 has 4 divisors (see below), whose sum is σ = 62972720. Its totient is φ = 31486356.

The previous prime is 47229503. The next prime is 47229563. The reversal of 47229537 is 73592274.

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 not a de Polignac number, because 47229537 - 2⁶ = 47229473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47229495 and 47229504.

It is not an unprimeable number, because it can be changed into a prime (47229737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7871587 + ... + 7871592.

It is an arithmetic number, because the mean of its divisors is an integer number (15743180).

Almost surely, 2^47229537 is an apocalyptic number.

It is an amenable number.

47229537 is a deficient number, since it is larger than the sum of its proper divisors (15743183).

47229537 is a wasteful number, since it uses less digits than its factorization.

47229537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15743182.

The product of its digits is 105840, while the sum is 39.

The square root of 47229537 is about 6872.3749170138. The cubic root of 47229537 is about 361.4691429464.

The spelling of 47229537 in words is "forty-seven million, two hundred twenty-nine thousand, five hundred thirty-seven".