963903 has 4 divisors (see below), whose sum is σ = 1285208. Its totient is φ = 642600.

The previous prime is 963901. The next prime is 963913. The reversal of 963903 is 309369.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309369 = 3 ⋅103123.

It is not a de Polignac number, because 963903 - 2¹ = 963901 is a prime.

It is a D-number.

It is a Duffinian number.

963903 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (963901) 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, 160648 + ... + 160653.

It is an arithmetic number, because the mean of its divisors is an integer number (321302).

2⁹⁶³⁹⁰³ is an apocalyptic number.

963903 is a deficient number, since it is larger than the sum of its proper divisors (321305).

963903 is a wasteful number, since it uses less digits than its factorization.

963903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321304.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 963903 is about 981.7856181469. The cubic root of 963903 is about 98.7819914507.

The spelling of 963903 in words is "nine hundred sixty-three thousand, nine hundred three".