99997306 has 4 divisors (see below), whose sum is σ = 149995962. Its totient is φ = 49998652.

The previous prime is 99997267. The next prime is 99997357. The reversal of 99997306 is 60379999.

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

It can be written as a sum of positive squares in only one way, i.e., 98188281 + 1809025 = 9909^2 + 1345^2 .

It is a super-2 number, since 2×99997306² = 19998922414515272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999325 + ... + 24999328.

Almost surely, 2^99997306 is an apocalyptic number.

99997306 is a deficient number, since it is larger than the sum of its proper divisors (49998656).

99997306 is a wasteful number, since it uses less digits than its factorization.

99997306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49998655.

The product of its (nonzero) digits is 826686, while the sum is 52.

The square root of 99997306 is about 9999.8652990928. The cubic root of 99997306 is about 464.1547151771.

The spelling of 99997306 in words is "ninety-nine million, nine hundred ninety-seven thousand, three hundred six".