99743519 has 4 divisors (see below), whose sum is σ = 99807120. Its totient is φ = 99679920.

The previous prime is 99743491. The next prime is 99743561. The reversal of 99743519 is 91534799.

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 99743519 - 2⁸ = 99743263 is a prime.

It is a super-2 number, since 2×99743519² = 19897539165006722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99743719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29387 + ... + 32604.

It is an arithmetic number, because the mean of its divisors is an integer number (24951780).

Almost surely, 2^99743519 is an apocalyptic number.

99743519 is a deficient number, since it is larger than the sum of its proper divisors (63601).

99743519 is a wasteful number, since it uses less digits than its factorization.

99743519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63600.

The product of its digits is 306180, while the sum is 47.

The square root of 99743519 is about 9987.1677166252. The cubic root of 99743519 is about 463.7617171670.

The spelling of 99743519 in words is "ninety-nine million, seven hundred forty-three thousand, five hundred nineteen".