99997916 has 24 divisors (see below), whose sum is σ = 181755840. Its totient is φ = 48081600.

The previous prime is 99997913. The next prime is 99997949. The reversal of 99997916 is 61979999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99997913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29846 + ... + 33026.

It is an arithmetic number, because the mean of its divisors is an integer number (7573160).

Almost surely, 2^99997916 is an apocalyptic number.

It is an amenable number.

99997916 is a deficient number, since it is larger than the sum of its proper divisors (81757924).

99997916 is a wasteful number, since it uses less digits than its factorization.

99997916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485 (or 3483 counting only the distinct ones).

The product of its digits is 2480058, while the sum is 59.

The square root of 99997916 is about 9999.8957994571. The cubic root of 99997916 is about 464.1556589818.

The spelling of 99997916 in words is "ninety-nine million, nine hundred ninety-seven thousand, nine hundred sixteen".