99486021 has 4 divisors (see below), whose sum is σ = 132648032. Its totient is φ = 66324012.

The previous prime is 99486019. The next prime is 99486029. The reversal of 99486021 is 12068499.

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 99486021 - 2¹ = 99486019 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 (99486029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16581001 + ... + 16581006.

It is an arithmetic number, because the mean of its divisors is an integer number (33162008).

Almost surely, 2^99486021 is an apocalyptic number.

It is an amenable number.

99486021 is a deficient number, since it is larger than the sum of its proper divisors (33162011).

99486021 is a wasteful number, since it uses less digits than its factorization.

99486021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33162010.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 99486021 is about 9974.2679430623. The cubic root of 99486021 is about 463.3622906296.

The spelling of 99486021 in words is "ninety-nine million, four hundred eighty-six thousand, twenty-one".