671079330 has 80 divisors (see below), whose sum is σ = 1810632384. Its totient is φ = 178342560.

The previous prime is 671079329. The next prime is 671079337. The reversal of 671079330 is 33970176.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (671079337) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 266859 + ... + 269361.

Almost surely, 2^671079330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671079330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905316192).

671079330 is an abundant number, since it is smaller than the sum of its proper divisors (1139553054).

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

671079330 is a wasteful number, since it uses less digits than its factorization.

671079330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853 (or 2844 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 671079330 is about 25905.1988990627. The cubic root of 671079330 is about 875.5036360459.

The spelling of 671079330 in words is "six hundred seventy-one million, seventy-nine thousand, three hundred thirty".