506001387 has 8 divisors (see below), whose sum is σ = 677641536. Its totient is φ = 335847752.

The previous prime is 506001383. The next prime is 506001409. The reversal of 506001387 is 783100605.

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 506001387 - 2² = 506001383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506001383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370833 + ... + 372194.

It is an arithmetic number, because the mean of its divisors is an integer number (84705192).

Almost surely, 2^506001387 is an apocalyptic number.

506001387 is a deficient number, since it is larger than the sum of its proper divisors (171640149).

506001387 is a wasteful number, since it uses less digits than its factorization.

506001387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743257.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 506001387 is about 22494.4745882183. The cubic root of 506001387 is about 796.8634409642.

The spelling of 506001387 in words is "five hundred six million, one thousand, three hundred eighty-seven".