981622 has 8 divisors (see below), whose sum is σ = 1508472. Its totient is φ = 478800.

The previous prime is 981601. The next prime is 981623. The reversal of 981622 is 226189.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981623) by changing a digit.

981622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5904 + ... + 6067.

It is an arithmetic number, because the mean of its divisors is an integer number (188559).

2⁹⁸¹⁶²² is an apocalyptic number.

981622 is a deficient number, since it is larger than the sum of its proper divisors (526850).

981622 is a wasteful number, since it uses less digits than its factorization.

981622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12014.

The product of its digits is 1728, while the sum is 28.

The square root of 981622 is about 990.7683886762. The cubic root of 981622 is about 99.3836084206.

The spelling of 981622 in words is "nine hundred eighty-one thousand, six hundred twenty-two".