99000973 has 2 divisors, whose sum is σ = 99000974.
Its totient is φ = 99000972.
The previous prime is 99000953. The next prime is 99000977. The reversal of 99000973 is 37900099.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 98843364 + 157609 = 9942^2 + 397^2
It is a cyclic number.
It is not a de Polignac number, because 99000973 - 213 = 98992781 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (99000977) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49500486 + 49500487.
It is an arithmetic number, because the mean of its divisors is an integer number (49500487).
Almost surely, 299000973 is an apocalyptic number.
It is an amenable number.
99000973 is a deficient number, since it is larger than the sum of its proper divisors (1).
99000973 is an equidigital number, since it uses as much as digits as its factorization.
99000973 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 15309, while the sum is 37.
The square root of 99000973 is about 9949.9232660358.
The cubic root of 99000973 is about 462.6080164558.
The spelling of 99000973 in words is "ninety-nine million, nine hundred seventy-three", and thus it is an aban number.