517427434 has 4 divisors (see below), whose sum is σ = 776141154. Its totient is φ = 258713716.

The previous prime is 517427411. The next prime is 517427447. The reversal of 517427434 is 434724715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434724715 = 5 ⋅86944943.

It can be written as a sum of positive squares in only one way, i.e., 322741225 + 194686209 = 17965^2 + 13953^2 .

It is a super-2 number, since 2×517427434² = 535462298911648712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 517427393 and 517427402.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 129356857 + ... + 129356860.

Almost surely, 2^517427434 is an apocalyptic number.

517427434 is a deficient number, since it is larger than the sum of its proper divisors (258713720).

517427434 is a wasteful number, since it uses less digits than its factorization.

517427434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258713719.

The product of its digits is 94080, while the sum is 37.

The square root of 517427434 is about 22747.0313227902. The cubic root of 517427434 is about 802.8168585356.

The spelling of 517427434 in words is "five hundred seventeen million, four hundred twenty-seven thousand, four hundred thirty-four".