99997733 has 4 divisors (see below), whose sum is σ = 109088448. Its totient is φ = 90907020.

The previous prime is 99997691. The next prime is 99997759. The reversal of 99997733 is 33779999.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99997733 - 2⁶ = 99997669 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99997783) 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, 4545341 + ... + 4545362.

It is an arithmetic number, because the mean of its divisors is an integer number (27272112).

Almost surely, 2^99997733 is an apocalyptic number.

It is an amenable number.

99997733 is a deficient number, since it is larger than the sum of its proper divisors (9090715).

99997733 is a wasteful number, since it uses less digits than its factorization.

99997733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9090714.

The product of its digits is 2893401, while the sum is 56.

The square root of 99997733 is about 9999.8866493576. The cubic root of 99997733 is about 464.1553758408.

The spelling of 99997733 in words is "ninety-nine million, nine hundred ninety-seven thousand, seven hundred thirty-three".