47137923 has 48 divisors (see below), whose sum is σ = 84879360. Its totient is φ = 25322112.

The previous prime is 47137907. The next prime is 47137927. The reversal of 47137923 is 32973174.

It is not a de Polignac number, because 47137923 - 2⁴ = 47137907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47137927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54190 + ... + 55052.

It is an arithmetic number, because the mean of its divisors is an integer number (1768320).

Almost surely, 2^47137923 is an apocalyptic number.

47137923 is a deficient number, since it is larger than the sum of its proper divisors (37741437).

47137923 is a wasteful number, since it uses less digits than its factorization.

47137923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 890 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 47137923 is about 6865.7063001559. The cubic root of 47137923 is about 361.2352704490.

The spelling of 47137923 in words is "forty-seven million, one hundred thirty-seven thousand, nine hundred twenty-three".