671427308 has 24 divisors (see below), whose sum is σ = 1277744832. Its totient is φ = 307425024.

The previous prime is 671427287. The next prime is 671427311. The reversal of 671427308 is 803724176.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130916 + ... + 135947.

It is an arithmetic number, because the mean of its divisors is an integer number (53239368).

Almost surely, 2^671427308 is an apocalyptic number.

671427308 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

671427308 is a deficient number, since it is larger than the sum of its proper divisors (606317524).

671427308 is a wasteful number, since it uses less digits than its factorization.

671427308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266921 (or 266919 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 671427308 is about 25911.9144024520. The cubic root of 671427308 is about 875.6549362711.

The spelling of 671427308 in words is "six hundred seventy-one million, four hundred twenty-seven thousand, three hundred eight".