18828097 has 2 divisors, whose sum is σ = 18828098. Its totient is φ = 18828096.

The previous prime is 18828049. The next prime is 18828127. The reversal of 18828097 is 79082881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16842816 + 1985281 = 4104^2 + 1409^2 .

It is a cyclic number.

It is not a de Polignac number, because 18828097 - 2¹⁹ = 18303809 is a prime.

It is not a weakly prime, because it can be changed into another prime (18828037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9414048 + 9414049.

It is an arithmetic number, because the mean of its divisors is an integer number (9414049).

Almost surely, 2^18828097 is an apocalyptic number.

It is an amenable number.

18828097 is a deficient number, since it is larger than the sum of its proper divisors (1).

18828097 is an equidigital number, since it uses as much as digits as its factorization.

18828097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 18828097 is about 4339.1355129795. The cubic root of 18828097 is about 266.0329778022.

The spelling of 18828097 in words is "eighteen million, eight hundred twenty-eight thousand, ninety-seven".