8389146047 has 4 divisors (see below), whose sum is σ = 8426765760. Its totient is φ = 8351526336.

The previous prime is 8389146037. The next prime is 8389146053. The reversal of 8389146047 is 7406419838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8389146047 - 2¹⁴ = 8389129663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8389145986 and 8389146004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8389146037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18809522 + ... + 18809967.

It is an arithmetic number, because the mean of its divisors is an integer number (2106691440).

Almost surely, 2^8389146047 is an apocalyptic number.

8389146047 is a deficient number, since it is larger than the sum of its proper divisors (37619713).

8389146047 is a wasteful number, since it uses less digits than its factorization.

8389146047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37619712.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 8389146047 is about 91592.2815907541. The cubic root of 8389146047 is about 2031.9167871786.

The spelling of 8389146047 in words is "eight billion, three hundred eighty-nine million, one hundred forty-six thousand, forty-seven".