671217434 has 8 divisors (see below), whose sum is σ = 1028248128. Its totient is φ = 328468060.

The previous prime is 671217433. The next prime is 671217439. The reversal of 671217434 is 434712176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 671217394 and 671217403.

It is not an unprimeable number, because it can be changed into a prime (671217433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3570212 + ... + 3570399.

It is an arithmetic number, because the mean of its divisors is an integer number (128531016).

Almost surely, 2^671217434 is an apocalyptic number.

671217434 is a deficient number, since it is larger than the sum of its proper divisors (357030694).

671217434 is a wasteful number, since it uses less digits than its factorization.

671217434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140660.

The product of its digits is 28224, while the sum is 35.

The square root of 671217434 is about 25907.8643272656. The cubic root of 671217434 is about 875.5636896816.

The spelling of 671217434 in words is "six hundred seventy-one million, two hundred seventeen thousand, four hundred thirty-four".