99512685 has 16 divisors (see below), whose sum is σ = 176911680. Its totient is φ = 53073360.

The previous prime is 99512683. The next prime is 99512687. The reversal of 99512685 is 58621599.

It is an interprime number because it is at equal distance from previous prime (99512683) and next prime (99512687).

It is not a de Polignac number, because 99512685 - 2¹ = 99512683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 99512685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99512683) by changing a digit.

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, 368431 + ... + 368700.

It is an arithmetic number, because the mean of its divisors is an integer number (11056980).

Almost surely, 2^99512685 is an apocalyptic number.

It is an amenable number.

99512685 is a deficient number, since it is larger than the sum of its proper divisors (77398995).

99512685 is a wasteful number, since it uses less digits than its factorization.

99512685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737145 (or 737139 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 99512685 is about 9975.6044929618. The cubic root of 99512685 is about 463.4036833411.

The spelling of 99512685 in words is "ninety-nine million, five hundred twelve thousand, six hundred eighty-five".