6890889057 has 8 divisors (see below), whose sum is σ = 9894609984. Its totient is φ = 4240547088.

The previous prime is 6890889001. The next prime is 6890889091. The reversal of 6890889057 is 7509880986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6890889057 - 2²⁰ = 6889840481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6890889457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88344693 + ... + 88344770.

It is an arithmetic number, because the mean of its divisors is an integer number (1236826248).

Almost surely, 2^6890889057 is an apocalyptic number.

It is an amenable number.

6890889057 is a deficient number, since it is larger than the sum of its proper divisors (3003720927).

6890889057 is a wasteful number, since it uses less digits than its factorization.

6890889057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176689479.

The product of its (nonzero) digits is 8709120, while the sum is 60.

The square root of 6890889057 is about 83011.3790814247. The cubic root of 6890889057 is about 1902.9399597800.

The spelling of 6890889057 in words is "six billion, eight hundred ninety million, eight hundred eighty-nine thousand, fifty-seven".