389516806 has 32 divisors (see below), whose sum is σ = 693000000. Its totient is φ = 160659072.

The previous prime is 389516773. The next prime is 389516819. The reversal of 389516806 is 608615983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140320 + ... + 143068.

It is an arithmetic number, because the mean of its divisors is an integer number (21656250).

Almost surely, 2^389516806 is an apocalyptic number.

389516806 is a deficient number, since it is larger than the sum of its proper divisors (303483194).

389516806 is a wasteful number, since it uses less digits than its factorization.

389516806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 389516806 is about 19736.1801268635. The cubic root of 389516806 is about 730.3124989702.

The spelling of 389516806 in words is "three hundred eighty-nine million, five hundred sixteen thousand, eight hundred six".