963649 has 4 divisors (see below), whose sum is σ = 968836. Its totient is φ = 958464.

The previous prime is 963643. The next prime is 963653. The reversal of 963649 is 946369.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283024 + 680625 = 532^2 + 825^2 .

It is a cyclic number.

It is not a de Polignac number, because 963649 - 2¹¹ = 961601 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (963643) 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, 2304 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (242209).

2⁹⁶³⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

963649 is a deficient number, since it is larger than the sum of its proper divisors (5187).

963649 is a wasteful number, since it uses less digits than its factorization.

963649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186.

The product of its digits is 34992, while the sum is 37.

The square root of 963649 is about 981.6562534818. The cubic root of 963649 is about 98.7733139420.

The spelling of 963649 in words is "nine hundred sixty-three thousand, six hundred forty-nine".