505702399 has 8 divisors (see below), whose sum is σ = 520483968. Its totient is φ = 491133720.

The previous prime is 505702391. The next prime is 505702409. The reversal of 505702399 is 993207505.

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 505702399 - 2³ = 505702391 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 (505702391) 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, 48397 + ... + 57910.

It is an arithmetic number, because the mean of its divisors is an integer number (65060496).

Almost surely, 2^505702399 is an apocalyptic number.

505702399 is a deficient number, since it is larger than the sum of its proper divisors (14781569).

505702399 is a wasteful number, since it uses less digits than its factorization.

505702399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106445.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 505702399 is about 22487.8277963880. The cubic root of 505702399 is about 796.7064588198.

The spelling of 505702399 in words is "five hundred five million, seven hundred two thousand, three hundred ninety-nine".