671000880 has 160 divisors (see below), whose sum is σ = 2402846208. Its totient is φ = 153088000.

The previous prime is 671000879. The next prime is 671000881. The reversal of 671000880 is 88000176.

It is an interprime number because it is at equal distance from previous prime (671000879) and next prime (671000881).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (671000881) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 37405 + ... + 52355.

Almost surely, 2^671000880 is an apocalyptic number.

671000880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671000880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201423104).

671000880 is an abundant number, since it is smaller than the sum of its proper divisors (1731845328).

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

671000880 is a wasteful number, since it uses less digits than its factorization.

671000880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995 (or 14989 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 671000880 is about 25903.6846799833. The cubic root of 671000880 is about 875.4695188987.

The spelling of 671000880 in words is "six hundred seventy-one million, eight hundred eighty", and thus it is an aban number.