99989270 has 32 divisors (see below), whose sum is σ = 185667552. Its totient is φ = 38751232.

The previous prime is 99989269. The next prime is 99989311. The reversal of 99989270 is 7298999.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42854 + ... + 45126.

It is an arithmetic number, because the mean of its divisors is an integer number (5802111).

Almost surely, 2^99989270 is an apocalyptic number.

99989270 is a deficient number, since it is larger than the sum of its proper divisors (85678282).

99989270 is a wasteful number, since it uses less digits than its factorization.

99989270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 99989270 is about 9999.4634856076. The cubic root of 99989270 is about 464.1422813514.

The spelling of 99989270 in words is "ninety-nine million, nine hundred eighty-nine thousand, two hundred seventy".