73963 has 4 divisors (see below), whose sum is σ = 76000. Its totient is φ = 71928.

The previous prime is 73961. The next prime is 73973. The reversal of 73963 is 36937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36937 = 43 ⋅859.

It is not a de Polignac number, because 73963 - 2¹ = 73961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73961) 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, 963 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (19000).

2⁷³⁹⁶³ is an apocalyptic number.

73963 is a deficient number, since it is larger than the sum of its proper divisors (2037).

73963 is a wasteful number, since it uses less digits than its factorization.

73963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its digits is 3402, while the sum is 28.

The square root of 73963 is about 271.9613943191. The cubic root of 73963 is about 41.9763661441.

The spelling of 73963 in words is "seventy-three thousand, nine hundred sixty-three".