47812830 has 32 divisors (see below), whose sum is σ = 123578784. Its totient is φ = 11769216.

The previous prime is 47812747. The next prime is 47812841. The reversal of 47812830 is 3821874.

It is a junction number, because it is equal to n+sod(n) for n = 47812791 and 47812800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60909 + ... + 61688.

It is an arithmetic number, because the mean of its divisors is an integer number (3861837).

Almost surely, 2^47812830 is an apocalyptic number.

47812830 is an abundant number, since it is smaller than the sum of its proper divisors (75765954).

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

47812830 is a wasteful number, since it uses less digits than its factorization.

47812830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122620.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 47812830 is about 6914.6822052789. The cubic root of 47812830 is about 362.9511276022.

The spelling of 47812830 in words is "forty-seven million, eight hundred twelve thousand, eight hundred thirty".