99259389 has 6 divisors (see below), whose sum is σ = 143374686. Its totient is φ = 66172920.

The previous prime is 99259367. The next prime is 99259399. The reversal of 99259389 is 98395299.

99259389 is a `hidden beast` number, since 9 + 9 + 259 + 389 = 666.

It can be written as a sum of positive squares in only one way, i.e., 98843364 + 416025 = 9942^2 + 645^2 .

It is not a de Polignac number, because 99259389 - 2¹¹ = 99257341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99259309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5514402 + ... + 5514419.

It is an arithmetic number, because the mean of its divisors is an integer number (23895781).

Almost surely, 2^99259389 is an apocalyptic number.

It is an amenable number.

99259389 is a deficient number, since it is larger than the sum of its proper divisors (44115297).

99259389 is a wasteful number, since it uses less digits than its factorization.

99259389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11028827 (or 11028824 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The square root of 99259389 is about 9962.9006318441. The cubic root of 99259389 is about 463.0101722672.

The spelling of 99259389 in words is "ninety-nine million, two hundred fifty-nine thousand, three hundred eighty-nine".