389166899 has 8 divisors (see below), whose sum is σ = 434419392. Its totient is φ = 345560040.

The previous prime is 389166871. The next prime is 389166917. The reversal of 389166899 is 998661983.

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

It is not a de Polignac number, because 389166899 - 2⁸ = 389166643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389166859) 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, 410909 + ... + 411854.

It is an arithmetic number, because the mean of its divisors is an integer number (54302424).

Almost surely, 2^389166899 is an apocalyptic number.

389166899 is a deficient number, since it is larger than the sum of its proper divisors (45252493).

389166899 is a wasteful number, since it uses less digits than its factorization.

389166899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822817.

The product of its digits is 5038848, while the sum is 59.

The square root of 389166899 is about 19727.3135271886. The cubic root of 389166899 is about 730.0937510169.

The spelling of 389166899 in words is "three hundred eighty-nine million, one hundred sixty-six thousand, eight hundred ninety-nine".