99967633 has 4 divisors (see below), whose sum is σ = 105848100. Its totient is φ = 94087168.

The previous prime is 99967619. The next prime is 99967649. The reversal of 99967633 is 33676999.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75047569 + 24920064 = 8663^2 + 4992^2 .

It is a cyclic number.

It is not a de Polignac number, because 99967633 - 2⁹ = 99967121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99967613) 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, 2940208 + ... + 2940241.

It is an arithmetic number, because the mean of its divisors is an integer number (26462025).

Almost surely, 2^99967633 is an apocalyptic number.

It is an amenable number.

99967633 is a deficient number, since it is larger than the sum of its proper divisors (5880467).

99967633 is a wasteful number, since it uses less digits than its factorization.

99967633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880466.

The product of its digits is 1653372, while the sum is 52.

The square root of 99967633 is about 9998.3815190260. The cubic root of 99967633 is about 464.1087998555.

The spelling of 99967633 in words is "ninety-nine million, nine hundred sixty-seven thousand, six hundred thirty-three".