47823420 has 24 divisors (see below), whose sum is σ = 133905744. Its totient is φ = 12752896.

The previous prime is 47823409. The next prime is 47823427. The reversal of 47823420 is 2432874.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47823427) 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, 398469 + ... + 398588.

It is an arithmetic number, because the mean of its divisors is an integer number (5579406).

Almost surely, 2^47823420 is an apocalyptic number.

It is an amenable number.

47823420 is an abundant number, since it is smaller than the sum of its proper divisors (86082324).

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

47823420 is a wasteful number, since it uses less digits than its factorization.

47823420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797069 (or 797067 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 47823420 is about 6915.4479247551. The cubic root of 47823420 is about 362.9779221446.

The spelling of 47823420 in words is "forty-seven million, eight hundred twenty-three thousand, four hundred twenty".