681052 has 6 divisors (see below), whose sum is σ = 1191848. Its totient is φ = 340524.

The previous prime is 681049. The next prime is 681061. The reversal of 681052 is 250186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85128 + ... + 85135.

2⁶⁸¹⁰⁵² is an apocalyptic number.

It is an amenable number.

681052 is a deficient number, since it is larger than the sum of its proper divisors (510796).

681052 is a wasteful number, since it uses less digits than its factorization.

681052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170267 (or 170265 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 681052 is about 825.2587473029. The cubic root of 681052 is about 87.9819177723.

The spelling of 681052 in words is "six hundred eighty-one thousand, fifty-two".