99597743 has 6 divisors (see below), whose sum is σ = 115858656. Its totient is φ = 85369452.

The previous prime is 99597739. The next prime is 99597763. The reversal of 99597743 is 34779599.

It is a happy number.

It is not a de Polignac number, because 99597743 - 2² = 99597739 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 (99597703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1016255 + ... + 1016352.

It is an arithmetic number, because the mean of its divisors is an integer number (19309776).

Almost surely, 2^99597743 is an apocalyptic number.

99597743 is a deficient number, since it is larger than the sum of its proper divisors (16260913).

99597743 is a wasteful number, since it uses less digits than its factorization.

99597743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032621 (or 2032614 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 53.

The square root of 99597743 is about 9979.8668828798. The cubic root of 99597743 is about 463.5356764485.

The spelling of 99597743 in words is "ninety-nine million, five hundred ninety-seven thousand, seven hundred forty-three".