946621 has 4 divisors (see below), whose sum is σ = 1019452. Its totient is φ = 873792.

The previous prime is 946607. The next prime is 946661. The reversal of 946621 is 126649.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 126649 = 41 ⋅3089.

It can be written as a sum of positive squares in 2 ways, for example, as 290521 + 656100 = 539^2 + 810^2 .

It is a cyclic number.

It is not a de Polignac number, because 946621 - 2⁹ = 946109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 946621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36396 + ... + 36421.

It is an arithmetic number, because the mean of its divisors is an integer number (254863).

2⁹⁴⁶⁶²¹ is an apocalyptic number.

It is an amenable number.

946621 is a deficient number, since it is larger than the sum of its proper divisors (72831).

946621 is a wasteful number, since it uses less digits than its factorization.

946621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72830.

The product of its digits is 2592, while the sum is 28.

The square root of 946621 is about 972.9444999588. The cubic root of 946621 is about 98.1880672904.

Adding to 946621 its sum of digits (28), we get a palindrome (946649).

The spelling of 946621 in words is "nine hundred forty-six thousand, six hundred twenty-one".