99969783 has 4 divisors (see below), whose sum is σ = 133293048. Its totient is φ = 66646520.

The previous prime is 99969781. The next prime is 99969791. The reversal of 99969783 is 38796999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99969783 - 2¹ = 99969781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99969781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16661628 + ... + 16661633.

It is an arithmetic number, because the mean of its divisors is an integer number (33323262).

Almost surely, 2^99969783 is an apocalyptic number.

99969783 is a deficient number, since it is larger than the sum of its proper divisors (33323265).

99969783 is a wasteful number, since it uses less digits than its factorization.

99969783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33323264.

The product of its digits is 6613488, while the sum is 60.

The square root of 99969783 is about 9998.4890358494. The cubic root of 99969783 is about 464.1121270216.

The spelling of 99969783 in words is "ninety-nine million, nine hundred sixty-nine thousand, seven hundred eighty-three".