99743493 has 4 divisors (see below), whose sum is σ = 132991328. Its totient is φ = 66495660.

The previous prime is 99743491. The next prime is 99743561. The reversal of 99743493 is 39434799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 99743493 - 2¹ = 99743491 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 (99743491) 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, 16623913 + ... + 16623918.

It is an arithmetic number, because the mean of its divisors is an integer number (33247832).

Almost surely, 2^99743493 is an apocalyptic number.

It is an amenable number.

99743493 is a deficient number, since it is larger than the sum of its proper divisors (33247835).

99743493 is a wasteful number, since it uses less digits than its factorization.

99743493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33247834.

The product of its digits is 734832, while the sum is 48.

The square root of 99743493 is about 9987.1664149547. The cubic root of 99743493 is about 463.7616768710.

The spelling of 99743493 in words is "ninety-nine million, seven hundred forty-three thousand, four hundred ninety-three".