99419493 has 4 divisors (see below), whose sum is σ = 132559328. Its totient is φ = 66279660.

The previous prime is 99419479. The next prime is 99419513. The reversal of 99419493 is 39491499.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39491499 = 3 ⋅13163833.

It is not a de Polignac number, because 99419493 - 2⁵ = 99419461 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 (99419423) 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, 16569913 + ... + 16569918.

It is an arithmetic number, because the mean of its divisors is an integer number (33139832).

Almost surely, 2^99419493 is an apocalyptic number.

It is an amenable number.

99419493 is a deficient number, since it is larger than the sum of its proper divisors (33139835).

99419493 is a wasteful number, since it uses less digits than its factorization.

99419493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33139834.

The product of its digits is 314928, while the sum is 48.

The square root of 99419493 is about 9970.9324037424. The cubic root of 99419493 is about 463.2589815076.

The spelling of 99419493 in words is "ninety-nine million, four hundred nineteen thousand, four hundred ninety-three".