8472191928 has 32 divisors (see below), whose sum is σ = 21184364160. Its totient is φ = 2823546080.

The previous prime is 8472191909. The next prime is 8472191947. The reversal of 8472191928 is 8291912748.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8472191909) and next prime (8472191947).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114901 + ... + 173627.

It is an arithmetic number, because the mean of its divisors is an integer number (662011380).

Almost surely, 2^8472191928 is an apocalyptic number.

It is an amenable number.

8472191928 is an abundant number, since it is smaller than the sum of its proper divisors (12712172232).

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

8472191928 is a wasteful number, since it uses less digits than its factorization.

8472191928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64747 (or 64743 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 8472191928 is about 92044.5105804795. The cubic root of 8472191928 is about 2038.5995713347.

The spelling of 8472191928 in words is "eight billion, four hundred seventy-two million, one hundred ninety-one thousand, nine hundred twenty-eight".