389508501 has 16 divisors (see below), whose sum is σ = 538125120. Its totient is φ = 250448640.

The previous prime is 389508481. The next prime is 389508527. The reversal of 389508501 is 105805983.

It is not a de Polignac number, because 389508501 - 2⁷ = 389508373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389508501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389508551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11380 + ... + 30141.

It is an arithmetic number, because the mean of its divisors is an integer number (33632820).

Almost surely, 2^389508501 is an apocalyptic number.

It is an amenable number.

389508501 is a deficient number, since it is larger than the sum of its proper divisors (148616619).

389508501 is a wasteful number, since it uses less digits than its factorization.

389508501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41636.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 389508501 is about 19735.9697253517. The cubic root of 389508501 is about 730.3073085323.

The spelling of 389508501 in words is "three hundred eighty-nine million, five hundred eight thousand, five hundred one".