501947 has 2 divisors, whose sum is σ = 501948. Its totient is φ = 501946.

The previous prime is 501931. The next prime is 501953. The reversal of 501947 is 749105.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 501947 - 2⁴ = 501931 is a prime.

It is a Chen prime.

It is equal to p₄₁₆₈₇ and since 501947 and 41687 have the same sum of digits, it is a Honaker prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 501947.

It is not a weakly prime, because it can be changed into another prime (501967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250973 + 250974.

It is an arithmetic number, because the mean of its divisors is an integer number (250974).

2⁵⁰¹⁹⁴⁷ is an apocalyptic number.

501947 is a deficient number, since it is larger than the sum of its proper divisors (1).

501947 is an equidigital number, since it uses as much as digits as its factorization.

501947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 501947 is about 708.4821804393. The cubic root of 501947 is about 79.4729414922.

The spelling of 501947 in words is "five hundred one thousand, nine hundred forty-seven".