389861501 has 4 divisors (see below), whose sum is σ = 392666400. Its totient is φ = 387056604.

The previous prime is 389861491. The next prime is 389861503. The reversal of 389861501 is 105168983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 389861501 - 2¹⁰ = 389860477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389861503) 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 3 ways as a sum of consecutive naturals, for example, 1402241 + ... + 1402518.

It is an arithmetic number, because the mean of its divisors is an integer number (98166600).

Almost surely, 2^389861501 is an apocalyptic number.

It is an amenable number.

389861501 is a deficient number, since it is larger than the sum of its proper divisors (2804899).

389861501 is a wasteful number, since it uses less digits than its factorization.

389861501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804898.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 389861501 is about 19744.9107620166. The cubic root of 389861501 is about 730.5278605357.

The spelling of 389861501 in words is "three hundred eighty-nine million, eight hundred sixty-one thousand, five hundred one".