917043434 has 4 divisors (see below), whose sum is σ = 1375565154. Its totient is φ = 458521716.

The previous prime is 917043403. The next prime is 917043443. The reversal of 917043434 is 434340719.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434340719 = 823 ⋅527753.

It can be written as a sum of positive squares in only one way, i.e., 839550625 + 77492809 = 28975^2 + 8803^2 .

It is a junction number, because it is equal to n+sod(n) for n = 917043394 and 917043403.

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, 229260857 + ... + 229260860.

Almost surely, 2^917043434 is an apocalyptic number.

917043434 is a deficient number, since it is larger than the sum of its proper divisors (458521720).

917043434 is a wasteful number, since it uses less digits than its factorization.

917043434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458521719.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 917043434 is about 30282.7250094835. The cubic root of 917043434 is about 971.5458519857.

The spelling of 917043434 in words is "nine hundred seventeen million, forty-three thousand, four hundred thirty-four".