505294739 has 8 divisors (see below), whose sum is σ = 517920480. Its totient is φ = 492783616.

The previous prime is 505294733. The next prime is 505294793. The reversal of 505294739 is 937492505.

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 505294739 - 2¹⁶ = 505229203 is a prime.

It is a super-2 number, since 2×505294739² = 510645546522156242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505294739.

It is not an unprimeable number, because it can be changed into a prime (505294733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19694 + ... + 37395.

It is an arithmetic number, because the mean of its divisors is an integer number (64740060).

Almost surely, 2^505294739 is an apocalyptic number.

505294739 is a deficient number, since it is larger than the sum of its proper divisors (12625741).

505294739 is a wasteful number, since it uses less digits than its factorization.

505294739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57309.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 505294739 is about 22478.7619543426. The cubic root of 505294739 is about 796.4923192604.

The spelling of 505294739 in words is "five hundred five million, two hundred ninety-four thousand, seven hundred thirty-nine".