99994663 has 16 divisors (see below), whose sum is σ = 111892320. Its totient is φ = 88805376.

The previous prime is 99994637. The next prime is 99994669. The reversal of 99994663 is 36649999.

It is a cyclic number.

It is not a de Polignac number, because 99994663 - 2¹⁷ = 99863591 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 (99994669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113581 + ... + 114457.

It is an arithmetic number, because the mean of its divisors is an integer number (6993270).

Almost surely, 2^99994663 is an apocalyptic number.

99994663 is a deficient number, since it is larger than the sum of its proper divisors (11897657).

99994663 is a wasteful number, since it uses less digits than its factorization.

99994663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its digits is 2834352, while the sum is 55.

The square root of 99994663 is about 9999.7331464395. The cubic root of 99994663 is about 464.1506258278.

The spelling of 99994663 in words is "ninety-nine million, nine hundred ninety-four thousand, six hundred sixty-three".