128833907 has 2 divisors, whose sum is σ = 128833908. Its totient is φ = 128833906.

The previous prime is 128833897. The next prime is 128833933. The reversal of 128833907 is 709338821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128833907 - 2¹⁴ = 128817523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128833007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64416953 + 64416954.

It is an arithmetic number, because the mean of its divisors is an integer number (64416954).

Almost surely, 2^128833907 is an apocalyptic number.

128833907 is a deficient number, since it is larger than the sum of its proper divisors (1).

128833907 is an equidigital number, since it uses as much as digits as its factorization.

128833907 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 41.

The square root of 128833907 is about 11350.5024998896. The cubic root of 128833907 is about 505.0604861707.

The spelling of 128833907 in words is "one hundred twenty-eight million, eight hundred thirty-three thousand, nine hundred seven".