1008869761 has 2 divisors, whose sum is σ = 1008869762. Its totient is φ = 1008869760.

The previous prime is 1008869759. The next prime is 1008869767. The reversal of 1008869761 is 1679688001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 877996161 + 130873600 = 29631^2 + 11440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008869761 - 2¹ = 1008869759 is a prime.

Together with 1008869759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1008869767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504434880 + 504434881.

It is an arithmetic number, because the mean of its divisors is an integer number (504434881).

Almost surely, 2^1008869761 is an apocalyptic number.

It is an amenable number.

1008869761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1008869761 is an equidigital number, since it uses as much as digits as its factorization.

1008869761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 1008869761 is about 31762.7102275609. The cubic root of 1008869761 is about 1002.9478884148.

The spelling of 1008869761 in words is "one billion, eight million, eight hundred sixty-nine thousand, seven hundred sixty-one".