83903663 has 4 divisors (see below), whose sum is σ = 83948040. Its totient is φ = 83859288.

The previous prime is 83903657. The next prime is 83903681. The reversal of 83903663 is 36630938.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36630938 = 2 ⋅18315469.

It is a cyclic number.

It is not a de Polignac number, because 83903663 - 2⁴ = 83903647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83903623) 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, 19220 + ... + 23177.

It is an arithmetic number, because the mean of its divisors is an integer number (20987010).

Almost surely, 2^83903663 is an apocalyptic number.

83903663 is a deficient number, since it is larger than the sum of its proper divisors (44377).

83903663 is a wasteful number, since it uses less digits than its factorization.

83903663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44376.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 83903663 is about 9159.8942679487. The cubic root of 83903663 is about 437.7844254452.

The spelling of 83903663 in words is "eighty-three million, nine hundred three thousand, six hundred sixty-three".