99423620 has 12 divisors (see below), whose sum is σ = 208789644. Its totient is φ = 39769440.

The previous prime is 99423613. The next prime is 99423661. The reversal of 99423620 is 2632499.

It can be written as a sum of positive squares in 2 ways, for example, as 51868804 + 47554816 = 7202^2 + 6896^2 .

It is an unprimeable number.

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, 2485571 + ... + 2485610.

It is an arithmetic number, because the mean of its divisors is an integer number (17399137).

Almost surely, 2^99423620 is an apocalyptic number.

It is an amenable number.

99423620 is an abundant number, since it is smaller than the sum of its proper divisors (109366024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99423620 is a wasteful number, since it uses less digits than its factorization.

99423620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971190 (or 4971188 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 99423620 is about 9971.1393531532. The cubic root of 99423620 is about 463.2653915295.

The spelling of 99423620 in words is "ninety-nine million, four hundred twenty-three thousand, six hundred twenty".