28932820347 has 8 divisors (see below), whose sum is σ = 38750086144. Its totient is φ = 19202050728.

The previous prime is 28932820339. The next prime is 28932820373. The reversal of 28932820347 is 74302823982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28932820347 - 2³ = 28932820339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28932820296 and 28932820305.

It is not an unprimeable number, because it can be changed into a prime (28932820337) 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, 21623263 + ... + 21624600.

It is an arithmetic number, because the mean of its divisors is an integer number (4843760768).

Almost surely, 2^28932820347 is an apocalyptic number.

28932820347 is a deficient number, since it is larger than the sum of its proper divisors (9817265797).

28932820347 is a wasteful number, since it uses less digits than its factorization.

28932820347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43248089.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 28932820347 in words is "twenty-eight billion, nine hundred thirty-two million, eight hundred twenty thousand, three hundred forty-seven".