11428897 has 2 divisors, whose sum is σ = 11428898. Its totient is φ = 11428896.

The previous prime is 11428853. The next prime is 11428903. The reversal of 11428897 is 79882411.

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., 9979281 + 1449616 = 3159^2 + 1204^2 .

It is a cyclic number.

It is not a de Polignac number, because 11428897 - 2¹⁵ = 11396129 is a prime.

It is not a weakly prime, because it can be changed into another prime (11428817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5714448 + 5714449.

It is an arithmetic number, because the mean of its divisors is an integer number (5714449).

Almost surely, 2^11428897 is an apocalyptic number.

It is an amenable number.

11428897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11428897 is an equidigital number, since it uses as much as digits as its factorization.

11428897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 40.

The square root of 11428897 is about 3380.6651712348. The cubic root of 11428897 is about 225.2517150008.

The spelling of 11428897 in words is "eleven million, four hundred twenty-eight thousand, eight hundred ninety-seven".