1069889801 has 2 divisors, whose sum is σ = 1069889802. Its totient is φ = 1069889800.

The previous prime is 1069889773. The next prime is 1069889803. The reversal of 1069889801 is 1089889601.

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., 849664201 + 220225600 = 29149^2 + 14840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1069889801 is a prime.

It is a super-2 number, since 2×1069889801² = 2289328372567639202, which contains 22 as substring.

Together with 1069889803, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1069889801.

It is not a weakly prime, because it can be changed into another prime (1069889803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534944900 + 534944901.

It is an arithmetic number, because the mean of its divisors is an integer number (534944901).

Almost surely, 2^1069889801 is an apocalyptic number.

It is an amenable number.

1069889801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069889801 is an equidigital number, since it uses as much as digits as its factorization.

1069889801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 50.

The square root of 1069889801 is about 32709.1699833548. The cubic root of 1069889801 is about 1022.7740076226.

The spelling of 1069889801 in words is "one billion, sixty-nine million, eight hundred eighty-nine thousand, eight hundred one".