889744007 has 2 divisors, whose sum is σ = 889744008. Its totient is φ = 889744006.

The previous prime is 889743971. The next prime is 889744021. The reversal of 889744007 is 700447988.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889744007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889744067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444872003 + 444872004.

It is an arithmetic number, because the mean of its divisors is an integer number (444872004).

Almost surely, 2^889744007 is an apocalyptic number.

889744007 is a deficient number, since it is larger than the sum of its proper divisors (1).

889744007 is an equidigital number, since it uses as much as digits as its factorization.

889744007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 889744007 is about 29828.5770193618. The cubic root of 889744007 is about 961.8079381533.

The spelling of 889744007 in words is "eight hundred eighty-nine million, seven hundred forty-four thousand, seven".