966621 has 8 divisors (see below), whose sum is σ = 1344960. Its totient is φ = 616352.

The previous prime is 966619. The next prime is 966631. The reversal of 966621 is 126669.

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

It is a cyclic number.

It is not a de Polignac number, because 966621 - 2¹ = 966619 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6936 + ... + 7073.

It is an arithmetic number, because the mean of its divisors is an integer number (168120).

2⁹⁶⁶⁶²¹ is an apocalyptic number.

It is an amenable number.

966621 is a deficient number, since it is larger than the sum of its proper divisors (378339).

966621 is a wasteful number, since it uses less digits than its factorization.

966621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14035.

The product of its digits is 3888, while the sum is 30.

The square root of 966621 is about 983.1688563009. The cubic root of 966621 is about 98.8747523359.

The spelling of 966621 in words is "nine hundred sixty-six thousand, six hundred twenty-one".