99627557 has 8 divisors (see below), whose sum is σ = 103240440.
Its totient is φ = 96026560.
The previous prime is 99627551. The next prime is 99627571. The reversal of 99627557 is 75572699.
It can be written as a sum of positive squares in 4 ways, for example, as 14508481 + 85119076 = 3809^2 + 9226^2
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 99627557 - 28 = 99627301 is a prime.
It is a super-2 number, since 2×996275572 = 19851300227576498, which contains 22 as substring.
It is a deceptive number, since it divides R99627556.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (99627551) 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, 16307 + ... + 21567.
It is an arithmetic number, because the mean of its divisors is an integer number (12905055).
Almost surely, 299627557 is an apocalyptic number.
It is an amenable number.
99627557 is a deficient number, since it is larger than the sum of its proper divisors (3612883).
99627557 is a wasteful number, since it uses less digits than its factorization.
99627557 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5943.
The product of its digits is 1190700, while the sum is 50.
The square root of 99627557 is about 9981.3604784117.
The cubic root of 99627557 is about 463.5819240625.
The spelling of 99627557 in words is "ninety-nine million, six hundred twenty-seven thousand, five hundred fifty-seven".