501363987 has 8 divisors (see below), whose sum is σ = 671483904. Its totient is φ = 332743368.

The previous prime is 501363979. The next prime is 501364009. The reversal of 501363987 is 789363105.

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

It is not a de Polignac number, because 501363987 - 2³ = 501363979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501363917) 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, 374043 + ... + 375380.

It is an arithmetic number, because the mean of its divisors is an integer number (83935488).

Almost surely, 2^501363987 is an apocalyptic number.

501363987 is a deficient number, since it is larger than the sum of its proper divisors (170119917).

501363987 is a wasteful number, since it uses less digits than its factorization.

501363987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749649.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 501363987 is about 22391.1586792645. The cubic root of 501363987 is about 794.4216021549.

The spelling of 501363987 in words is "five hundred one million, three hundred sixty-three thousand, nine hundred eighty-seven".