501363989 has 8 divisors (see below), whose sum is σ = 573122880. Its totient is φ = 429638976.

The previous prime is 501363979. The next prime is 501364009. The reversal of 501363989 is 989363105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 501363989 - 2¹² = 501359893 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 (501363979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53357 + ... + 62045.

It is an arithmetic number, because the mean of its divisors is an integer number (71640360).

Almost surely, 2^501363989 is an apocalyptic number.

It is an amenable number.

501363989 is a deficient number, since it is larger than the sum of its proper divisors (71758891).

501363989 is an equidigital number, since it uses as much as digits as its factorization.

501363989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16939.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 501363989 is about 22391.1587239249. The cubic root of 501363989 is about 794.4216032113.

The spelling of 501363989 in words is "five hundred one million, three hundred sixty-three thousand, nine hundred eighty-nine".