47109237 has 12 divisors (see below), whose sum is σ = 73067616. Its totient is φ = 26919480.

The previous prime is 47109233. The next prime is 47109239. The reversal of 47109237 is 73290174.

It is not a de Polignac number, because 47109237 - 2² = 47109233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47109198 and 47109207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47109233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160089 + ... + 160382.

It is an arithmetic number, because the mean of its divisors is an integer number (6088968).

Almost surely, 2^47109237 is an apocalyptic number.

It is an amenable number.

47109237 is a deficient number, since it is larger than the sum of its proper divisors (25958379).

47109237 is a wasteful number, since it uses less digits than its factorization.

47109237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320488 (or 320481 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 47109237 is about 6863.6169036449. The cubic root of 47109237 is about 361.1619784508.

The spelling of 47109237 in words is "forty-seven million, one hundred nine thousand, two hundred thirty-seven".