47145882 has 32 divisors (see below), whose sum is σ = 109245312. Its totient is φ = 13284864.

The previous prime is 47145877. The next prime is 47145887. The reversal of 47145882 is 28854174.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47145877) and next prime (47145887).

It is a self number, because there is not a number n which added to its sum of digits gives 47145882.

It is not an unprimeable number, because it can be changed into a prime (47145887) 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, 4623 + ... + 10754.

It is an arithmetic number, because the mean of its divisors is an integer number (3413916).

Almost surely, 2^47145882 is an apocalyptic number.

47145882 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

47145882 is an abundant number, since it is smaller than the sum of its proper divisors (62099430).

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

47145882 is a wasteful number, since it uses less digits than its factorization.

47145882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15462.

The product of its digits is 71680, while the sum is 39.

The square root of 47145882 is about 6866.2858955916. The cubic root of 47145882 is about 361.2556002213.

The spelling of 47145882 in words is "forty-seven million, one hundred forty-five thousand, eight hundred eighty-two".