681484 has 6 divisors (see below), whose sum is σ = 1192604. Its totient is φ = 340740.

The previous prime is 681481. The next prime is 681487. The reversal of 681484 is 484186.

681484 = T₃₃₁ + T₃₃₂ + ... + T₃₄₂.

It is an interprime number because it is at equal distance from previous prime (681481) and next prime (681487).

It is not an unprimeable number, because it can be changed into a prime (681481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85182 + ... + 85189.

2⁶⁸¹⁴⁸⁴ is an apocalyptic number.

It is an amenable number.

681484 is a deficient number, since it is larger than the sum of its proper divisors (511120).

681484 is a wasteful number, since it uses less digits than its factorization.

681484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170375 (or 170373 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 681484 is about 825.5204419032. The cubic root of 681484 is about 88.0005165259. Note that the first 3 decimals are identical.

The spelling of 681484 in words is "six hundred eighty-one thousand, four hundred eighty-four".