671287296 has 96 divisors (see below), whose sum is σ = 1895231520. Its totient is φ = 210567168.

The previous prime is 671287277. The next prime is 671287303. The reversal of 671287296 is 692782176.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101235 + ... + 107661.

It is an arithmetic number, because the mean of its divisors is an integer number (19741995).

Almost surely, 2^671287296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671287296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947615760).

671287296 is an abundant number, since it is smaller than the sum of its proper divisors (1223944224).

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

671287296 is a wasteful number, since it uses less digits than its factorization.

671287296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6469 (or 6449 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 671287296 is about 25909.2125700493. The cubic root of 671287296 is about 875.5940655853.

The spelling of 671287296 in words is "six hundred seventy-one million, two hundred eighty-seven thousand, two hundred ninety-six".