8471940 has 24 divisors (see below), whose sum is σ = 23721600. Its totient is φ = 2259168.

The previous prime is 8471923. The next prime is 8471941. The reversal of 8471940 is 491748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8471941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70540 + ... + 70659.

It is an arithmetic number, because the mean of its divisors is an integer number (988400).

Almost surely, 2^8471940 is an apocalyptic number.

It is an amenable number.

8471940 is an abundant number, since it is smaller than the sum of its proper divisors (15249660).

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

8471940 is a wasteful number, since it uses less digits than its factorization.

8471940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141211 (or 141209 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 8471940 is about 2910.6597190328. The cubic root of 8471940 is about 203.8579364624.

The spelling of 8471940 in words is "eight million, four hundred seventy-one thousand, nine hundred forty".