671169436 has 24 divisors (see below), whose sum is σ = 1345004640. Its totient is φ = 287072832.

The previous prime is 671169431. The next prime is 671169449. The reversal of 671169436 is 634961176.

It is a junction number, because it is equal to n+sod(n) for n = 671169392 and 671169401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671169431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9295 + ... + 37798.

It is an arithmetic number, because the mean of its divisors is an integer number (56041860).

Almost surely, 2^671169436 is an apocalyptic number.

It is an amenable number.

671169436 is an abundant number, since it is smaller than the sum of its proper divisors (673835204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671169436 is a wasteful number, since it uses less digits than its factorization.

671169436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47613 (or 47611 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 671169436 is about 25906.9379896583. The cubic root of 671169436 is about 875.5428189942.

The spelling of 671169436 in words is "six hundred seventy-one million, one hundred sixty-nine thousand, four hundred thirty-six".