99180827 has 2 divisors, whose sum is σ = 99180828. Its totient is φ = 99180826.

The previous prime is 99180803. The next prime is 99180847. The reversal of 99180827 is 72808199.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99180827 - 2¹² = 99176731 is a prime.

It is not a weakly prime, because it can be changed into another prime (99180847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49590413 + 49590414.

It is an arithmetic number, because the mean of its divisors is an integer number (49590414).

Almost surely, 2^99180827 is an apocalyptic number.

99180827 is a deficient number, since it is larger than the sum of its proper divisors (1).

99180827 is an equidigital number, since it uses as much as digits as its factorization.

99180827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 99180827 is about 9958.9571241170. The cubic root of 99180827 is about 462.8879853169.

It can be divided in two parts, 991 and 80827, that added together give a palindrome (81818).

The spelling of 99180827 in words is "ninety-nine million, one hundred eighty thousand, eight hundred twenty-seven".