517720796 has 12 divisors (see below), whose sum is σ = 906311280. Its totient is φ = 258774720.

The previous prime is 517720787. The next prime is 517720799. The reversal of 517720796 is 697027715.

It is a super-2 number, since 2×517720796² = 536069645221747232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517720799) 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 3 ways as a sum of consecutive naturals, for example, 6701 + ... + 32868.

It is an arithmetic number, because the mean of its divisors is an integer number (75525940).

Almost surely, 2^517720796 is an apocalyptic number.

It is an amenable number.

517720796 is a deficient number, since it is larger than the sum of its proper divisors (388590484).

517720796 is a wasteful number, since it uses less digits than its factorization.

517720796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42844 (or 42842 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 44.

The square root of 517720796 is about 22753.4787669930. The cubic root of 517720796 is about 802.9685522471.

The spelling of 517720796 in words is "five hundred seventeen million, seven hundred twenty thousand, seven hundred ninety-six".