671450 has 24 divisors (see below), whose sum is σ = 1346268. Its totient is φ = 247680.

The previous prime is 671443. The next prime is 671467. The reversal of 671450 is 54176.

671450 = T₁₃₄ + T₁₃₅ + ... + T₁₈₅.

It can be written as a sum of positive squares in 6 ways, for example, as 310249 + 361201 = 557^2 + 601^2 .

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134 + ... + 1166.

2⁶⁷¹⁴⁵⁰ is an apocalyptic number.

671450 is an abundant number, since it is smaller than the sum of its proper divisors (674818).

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

671450 is a wasteful number, since it uses less digits than its factorization.

671450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 671450 is about 819.4205269579. The cubic root of 671450 is about 87.5664800897.

The spelling of 671450 in words is "six hundred seventy-one thousand, four hundred fifty".