671580267 has 8 divisors (see below), whose sum is σ = 908052480. Its totient is φ = 441414120.

The previous prime is 671580263. The next prime is 671580269. The reversal of 671580267 is 762085176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 671580267 - 2² = 671580263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671580263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576267 + ... + 1576692.

It is an arithmetic number, because the mean of its divisors is an integer number (113506560).

Almost surely, 2^671580267 is an apocalyptic number.

671580267 is a deficient number, since it is larger than the sum of its proper divisors (236472213).

671580267 is a wasteful number, since it uses less digits than its factorization.

671580267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153033.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 671580267 is about 25914.8657530769. The cubic root of 671580267 is about 875.7214260370.

The spelling of 671580267 in words is "six hundred seventy-one million, five hundred eighty thousand, two hundred sixty-seven".