389364705 has 16 divisors (see below), whose sum is σ = 692204160. Its totient is φ = 207661104.

The previous prime is 389364697. The next prime is 389364709. The reversal of 389364705 is 507463983.

It is not a de Polignac number, because 389364705 - 2³ = 389364697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (389364709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441957 + ... + 1442226.

It is an arithmetic number, because the mean of its divisors is an integer number (43262760).

Almost surely, 2^389364705 is an apocalyptic number.

It is an amenable number.

389364705 is a deficient number, since it is larger than the sum of its proper divisors (302839455).

389364705 is a wasteful number, since it uses less digits than its factorization.

389364705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884197 (or 2884191 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 389364705 is about 19732.3263960436. The cubic root of 389364705 is about 730.2174275712.

The spelling of 389364705 in words is "three hundred eighty-nine million, three hundred sixty-four thousand, seven hundred five".