99999752 has 16 divisors (see below), whose sum is σ = 192567660.
Its totient is φ = 48648384.
The previous prime is 99999721. The next prime is 99999773. The reversal of 99999752 is 25799999.
It can be written as a sum of positive squares in 2 ways, for example, as 99880036 + 119716 = 9994^2 + 346^2
It is a nialpdrome in base 10.
It is a junction number, because it is equal to n+sod(n) for n = 99999691 and 99999700.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168623 + ... + 169214.
Almost surely, 299999752 is an apocalyptic number.
It is an amenable number.
99999752 is a deficient number, since it is larger than the sum of its proper divisors (92567908).
99999752 is a wasteful number, since it uses less digits than its factorization.
99999752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 337880 (or 337876 counting only the distinct ones).
The product of its digits is 4133430, while the sum is 59.
The square root of 99999752 is about 9999.9875999923.
The cubic root of 99999752 is about 464.1584996563.
The spelling of 99999752 in words is "ninety-nine million, nine hundred ninety-nine thousand, seven hundred fifty-two".