99491549 has 8 divisors (see below), whose sum is σ = 101326848. Its totient is φ = 97662960.

The previous prime is 99491521. The next prime is 99491591. The reversal of 99491549 is 94519499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99491549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99491497 and 99491506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99491849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35684 + ... + 38370.

It is an arithmetic number, because the mean of its divisors is an integer number (12665856).

Almost surely, 2^99491549 is an apocalyptic number.

It is an amenable number.

99491549 is a deficient number, since it is larger than the sum of its proper divisors (1835299).

99491549 is a wasteful number, since it uses less digits than its factorization.

99491549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355.

The product of its digits is 524880, while the sum is 50.

The square root of 99491549 is about 9974.5450522818. The cubic root of 99491549 is about 463.3708728045.

The spelling of 99491549 in words is "ninety-nine million, four hundred ninety-one thousand, five hundred forty-nine".