99387197 has 16 divisors (see below), whose sum is σ = 124156032. Its totient is φ = 77457600.

The previous prime is 99387191. The next prime is 99387199. The reversal of 99387197 is 79178399.

It is a cyclic number.

It is not a de Polignac number, because 99387197 - 2⁶ = 99387133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99387191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054 + ... + 14247.

It is an arithmetic number, because the mean of its divisors is an integer number (7759752).

Almost surely, 2^99387197 is an apocalyptic number.

It is an amenable number.

99387197 is a deficient number, since it is larger than the sum of its proper divisors (24768835).

99387197 is a wasteful number, since it uses less digits than its factorization.

99387197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16388.

The product of its digits is 857304, while the sum is 53.

The square root of 99387197 is about 9969.3127646794. The cubic root of 99387197 is about 463.2088135042.

The spelling of 99387197 in words is "ninety-nine million, three hundred eighty-seven thousand, one hundred ninety-seven".