99997206 has 8 divisors (see below), whose sum is σ = 199994424. Its totient is φ = 33332400.

The previous prime is 99997189. The next prime is 99997243. The reversal of 99997206 is 60279999.

It is a sphenic number, since it is the product of 3 distinct primes.

99997206 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8333095 + ... + 8333106.

It is an arithmetic number, because the mean of its divisors is an integer number (24999303).

Almost surely, 2^99997206 is an apocalyptic number.

99997206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99997206 is a wasteful number, since it uses less digits than its factorization.

99997206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666206.

The product of its (nonzero) digits is 551124, while the sum is 51.

The square root of 99997206 is about 9999.8602990242. The cubic root of 99997206 is about 464.1545604546.

It can be divided in two parts, 9999 and 7206, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 99997206 in words is "ninety-nine million, nine hundred ninety-seven thousand, two hundred six".