97105999 has 4 divisors (see below), whose sum is σ = 99474480. Its totient is φ = 94737520.

The previous prime is 97105963. The next prime is 97106027. The reversal of 97105999 is 99950179.

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

It is a cyclic number.

It is not a de Polignac number, because 97105999 - 2¹⁹ = 96581711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97105199) 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, 1184179 + ... + 1184260.

It is an arithmetic number, because the mean of its divisors is an integer number (24868620).

Almost surely, 2^97105999 is an apocalyptic number.

97105999 is a deficient number, since it is larger than the sum of its proper divisors (2368481).

97105999 is a wasteful number, since it uses less digits than its factorization.

97105999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368480.

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 97105999 is about 9854.2376163760. The cubic root of 97105999 is about 459.6373938261.

The spelling of 97105999 in words is "ninety-seven million, one hundred five thousand, nine hundred ninety-nine".