671049 has 6 divisors (see below), whose sum is σ = 969306. Its totient is φ = 447360.

The previous prime is 671039. The next prime is 671059. The reversal of 671049 is 940176.

671049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (671039) and next prime (671059).

It can be written as a sum of positive squares in only one way, i.e., 589824 + 81225 = 768^2 + 285^2 .

It is not a de Polignac number, because 671049 - 2⁵ = 671017 is a prime.

671049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (671029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37272 + ... + 37289.

It is an arithmetic number, because the mean of its divisors is an integer number (161551).

2⁶⁷¹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

671049 is a deficient number, since it is larger than the sum of its proper divisors (298257).

671049 is a wasteful number, since it uses less digits than its factorization.

671049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74567 (or 74564 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 671049 is about 819.1758053068. The cubic root of 671049 is about 87.5490446137.

The spelling of 671049 in words is "six hundred seventy-one thousand, forty-nine".