99993492 has 18 divisors (see below), whose sum is σ = 252761418.
Its totient is φ = 33331152.
The previous prime is 99993469. The next prime is 99993497. The reversal of 99993492 is 29439999.
It can be written as a sum of positive squares in only one way, i.e., 60000516 + 39992976 = 7746^2 + 6324^2
It is a tau number, because it is divible by the number of its divisors (18).
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (99993497) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1388763 + ... + 1388834.
It is an arithmetic number, because the mean of its divisors is an integer number (14042301).
Almost surely, 299993492 is an apocalyptic number.
It is an amenable number.
99993492 is an abundant number, since it is smaller than the sum of its proper divisors (152767926).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99993492 is a wasteful number, since it uses less digits than its factorization.
99993492 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2777607 (or 2777602 counting only the distinct ones).
The product of its digits is 1417176, while the sum is 54.
The square root of 99993492 is about 9999.6745947056.
The cubic root of 99993492 is about 464.1488139895.
The spelling of 99993492 in words is "ninety-nine million, nine hundred ninety-three thousand, four hundred ninety-two".