99587247 has 8 divisors (see below), whose sum is σ = 137361840. Its totient is φ = 64102080.

The previous prime is 99587233. The next prime is 99587249. The reversal of 99587247 is 74278599.

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

It is not a de Polignac number, because 99587247 - 2⁷ = 99587119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99587247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99587249) 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, 572254 + ... + 572427.

It is an arithmetic number, because the mean of its divisors is an integer number (17170230).

Almost surely, 2^99587247 is an apocalyptic number.

99587247 is a deficient number, since it is larger than the sum of its proper divisors (37774593).

99587247 is a wasteful number, since it uses less digits than its factorization.

99587247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144713.

The product of its digits is 1270080, while the sum is 51.

The square root of 99587247 is about 9979.3410103072. The cubic root of 99587247 is about 463.5193928085.

It can be divided in two parts, 9958 and 7247, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 99587247 in words is "ninety-nine million, five hundred eighty-seven thousand, two hundred forty-seven".