505170739 has 2 divisors, whose sum is σ = 505170740. Its totient is φ = 505170738.

The previous prime is 505170737. The next prime is 505170767. The reversal of 505170739 is 937071505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505170739 - 2¹ = 505170737 is a prime.

It is a super-2 number, since 2×505170739² = 510394951083612242, which contains 22 as substring.

Together with 505170737, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 505170698 and 505170707.

It is not a weakly prime, because it can be changed into another prime (505170733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252585369 + 252585370.

It is an arithmetic number, because the mean of its divisors is an integer number (252585370).

Almost surely, 2^505170739 is an apocalyptic number.

505170739 is a deficient number, since it is larger than the sum of its proper divisors (1).

505170739 is an equidigital number, since it uses as much as digits as its factorization.

505170739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 505170739 is about 22476.0036260898. The cubic root of 505170739 is about 796.4271605057.

The spelling of 505170739 in words is "five hundred five million, one hundred seventy thousand, seven hundred thirty-nine".