99054391 has 4 divisors (see below), whose sum is σ = 104267800. Its totient is φ = 93840984.

The previous prime is 99054383. The next prime is 99054407. The reversal of 99054391 is 19345099.

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 99054391 - 2³ = 99054383 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 (99051391) 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, 2606676 + ... + 2606713.

It is an arithmetic number, because the mean of its divisors is an integer number (26066950).

Almost surely, 2^99054391 is an apocalyptic number.

99054391 is a deficient number, since it is larger than the sum of its proper divisors (5213409).

99054391 is a wasteful number, since it uses less digits than its factorization.

99054391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213408.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 99054391 is about 9952.6072463451. The cubic root of 99054391 is about 462.6912047015.

The spelling of 99054391 in words is "ninety-nine million, fifty-four thousand, three hundred ninety-one".