981602 has 8 divisors (see below), whose sum is σ = 1481436. Its totient is φ = 487792.

The previous prime is 981601. The next prime is 981623. The reversal of 981602 is 206189.

It can be written as a sum of positive squares in 2 ways, for example, as 978121 + 3481 = 989^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (981601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073 + ... + 1764.

2⁹⁸¹⁶⁰² is an apocalyptic number.

981602 is a deficient number, since it is larger than the sum of its proper divisors (499834).

981602 is a wasteful number, since it uses less digits than its factorization.

981602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 981602 is about 990.7582954485. The cubic root of 981602 is about 99.3829334542.

The spelling of 981602 in words is "nine hundred eighty-one thousand, six hundred two".