671692 has 36 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 273504.

The previous prime is 671681. The next prime is 671701. The reversal of 671692 is 296176.

It is a plaindrome in base 9.

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, 4434 + ... + 4582.

It is an arithmetic number, because the mean of its divisors is an integer number (39900).

2⁶⁷¹⁶⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718200).

671692 is an abundant number, since it is smaller than the sum of its proper divisors (764708).

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

671692 is a wasteful number, since it uses less digits than its factorization.

671692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 181 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 671692 is about 819.5681789821. The cubic root of 671692 is about 87.5769988887.

The spelling of 671692 in words is "six hundred seventy-one thousand, six hundred ninety-two".