389707845 has 32 divisors (see below), whose sum is σ = 635859840. Its totient is φ = 203765760.

The previous prime is 389707831. The next prime is 389707859. The reversal of 389707845 is 548707983.

It is an interprime number because it is at equal distance from previous prime (389707831) and next prime (389707859).

It is not a de Polignac number, because 389707845 - 2⁹ = 389707333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241401 + ... + 243009.

It is an arithmetic number, because the mean of its divisors is an integer number (19870620).

Almost surely, 2^389707845 is an apocalyptic number.

It is an amenable number.

389707845 is a deficient number, since it is larger than the sum of its proper divisors (246151995).

389707845 is a wasteful number, since it uses less digits than its factorization.

389707845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 389707845 is about 19741.0193505807. The cubic root of 389707845 is about 730.4318736798.

The spelling of 389707845 in words is "three hundred eighty-nine million, seven hundred seven thousand, eight hundred forty-five".