1000995691 has 2 divisors, whose sum is σ = 1000995692. Its totient is φ = 1000995690.

The previous prime is 1000995679. The next prime is 1000995713. The reversal of 1000995691 is 1965990001.

It is a weak prime.

It is an emirp because it is prime and its reverse (1965990001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000995691 - 2⁵ = 1000995659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000995991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500497845 + 500497846.

It is an arithmetic number, because the mean of its divisors is an integer number (500497846).

Almost surely, 2^1000995691 is an apocalyptic number.

1000995691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000995691 is an equidigital number, since it uses as much as digits as its factorization.

1000995691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 1000995691 is about 31638.5159418074. The cubic root of 1000995691 is about 1000.3317869053.

The spelling of 1000995691 in words is "one billion, nine hundred ninety-five thousand, six hundred ninety-one".