47123538 has 32 divisors (see below), whose sum is σ = 117504000. Its totient is φ = 12239760.

The previous prime is 47123513. The next prime is 47123539. The reversal of 47123538 is 83532174.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 47123499 and 47123508.

It is not an unprimeable number, because it can be changed into a prime (47123539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50538 + ... + 51461.

It is an arithmetic number, because the mean of its divisors is an integer number (3672000).

Almost surely, 2^47123538 is an apocalyptic number.

47123538 is an abundant number, since it is smaller than the sum of its proper divisors (70380462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47123538 is a wasteful number, since it uses less digits than its factorization.

47123538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102022.

The product of its digits is 20160, while the sum is 33.

The square root of 47123538 is about 6864.6586222477. The cubic root of 47123538 is about 361.1985208589.

The spelling of 47123538 in words is "forty-seven million, one hundred twenty-three thousand, five hundred thirty-eight".