967621 has 4 divisors (see below), whose sum is σ = 985932. Its totient is φ = 949312.

The previous prime is 967607. The next prime is 967627. The reversal of 967621 is 126769.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 126769 = 17 ⋅7457.

It can be written as a sum of positive squares in 2 ways, for example, as 497025 + 470596 = 705^2 + 686^2 .

It is a cyclic number.

It is not a de Polignac number, because 967621 - 2⁷ = 967493 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

967621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (967627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9076 + ... + 9181.

It is an arithmetic number, because the mean of its divisors is an integer number (246483).

2⁹⁶⁷⁶²¹ is an apocalyptic number.

It is an amenable number.

967621 is a deficient number, since it is larger than the sum of its proper divisors (18311).

967621 is a wasteful number, since it uses less digits than its factorization.

967621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18310.

The product of its digits is 4536, while the sum is 31.

The square root of 967621 is about 983.6772844790. The cubic root of 967621 is about 98.9088369377.

The spelling of 967621 in words is "nine hundred sixty-seven thousand, six hundred twenty-one".