47323138 has 16 divisors (see below), whose sum is σ = 75630240. Its totient is φ = 22130496.

The previous prime is 47323127. The next prime is 47323139. The reversal of 47323138 is 83132374.

It is not an unprimeable number, because it can be changed into a prime (47323139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273 + ... + 9811.

It is an arithmetic number, because the mean of its divisors is an integer number (4726890).

Almost surely, 2^47323138 is an apocalyptic number.

47323138 is a deficient number, since it is larger than the sum of its proper divisors (28307102).

47323138 is a wasteful number, since it uses less digits than its factorization.

47323138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721.

The product of its digits is 12096, while the sum is 31.

The square root of 47323138 is about 6879.1814920091. The cubic root of 47323138 is about 361.7077757241.

The spelling of 47323138 in words is "forty-seven million, three hundred twenty-three thousand, one hundred thirty-eight".