99827615 has 8 divisors (see below), whose sum is σ = 126098160. Its totient is φ = 75658752.

The previous prime is 99827597. The next prime is 99827617. The reversal of 99827615 is 51672899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99827615 - 2¹⁰ = 99826591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99827615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99827617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525314 + ... + 525503.

It is an arithmetic number, because the mean of its divisors is an integer number (15762270).

Almost surely, 2^99827615 is an apocalyptic number.

99827615 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

99827615 is a deficient number, since it is larger than the sum of its proper divisors (26270545).

99827615 is a wasteful number, since it uses less digits than its factorization.

99827615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050841.

The product of its digits is 272160, while the sum is 47.

The square root of 99827615 is about 9991.3770322213. The cubic root of 99827615 is about 463.8920165260.

The spelling of 99827615 in words is "ninety-nine million, eight hundred twenty-seven thousand, six hundred fifteen".