89963663 has 4 divisors (see below), whose sum is σ = 90340320. Its totient is φ = 89587008.

The previous prime is 89963659. The next prime is 89963681. The reversal of 89963663 is 36636998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36636998 = 2 ⋅18318499.

It is a cyclic number.

It is not a de Polignac number, because 89963663 - 2² = 89963659 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 (89963683) 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, 187970 + ... + 188447.

It is an arithmetic number, because the mean of its divisors is an integer number (22585080).

Almost surely, 2^89963663 is an apocalyptic number.

89963663 is a deficient number, since it is larger than the sum of its proper divisors (376657).

89963663 is a wasteful number, since it uses less digits than its factorization.

89963663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376656.

The product of its digits is 1259712, while the sum is 50.

The square root of 89963663 is about 9484.9176591049. The cubic root of 89963663 is about 448.0801551281.

The spelling of 89963663 in words is "eighty-nine million, nine hundred sixty-three thousand, six hundred sixty-three".