99887752 has 32 divisors (see below), whose sum is σ = 190270080. Its totient is φ = 49155840.

The previous prime is 99887747. The next prime is 99887759. The reversal of 99887752 is 25778899.

It is a super-2 number, since 2×99887752² = 19955125999227008, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 99887693 and 99887702.

It is not an unprimeable number, because it can be changed into a prime (99887759) 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, 198333 + ... + 198835.

It is an arithmetic number, because the mean of its divisors is an integer number (5945940).

Almost surely, 2^99887752 is an apocalyptic number.

It is an amenable number.

99887752 is a deficient number, since it is larger than the sum of its proper divisors (90382328).

99887752 is a wasteful number, since it uses less digits than its factorization.

99887752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 849 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 55.

The square root of 99887752 is about 9994.3860241638. The cubic root of 99887752 is about 463.9851486527.

The spelling of 99887752 in words is "ninety-nine million, eight hundred eighty-seven thousand, seven hundred fifty-two".