2535691 has 2 divisors, whose sum is σ = 2535692. Its totient is φ = 2535690.

The previous prime is 2535671. The next prime is 2535719. The reversal of 2535691 is 1965352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2535691 - 2⁹ = 2535179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2535641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1267845 + 1267846.

It is an arithmetic number, because the mean of its divisors is an integer number (1267846).

2^2535691 is an apocalyptic number.

2535691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2535691 is an equidigital number, since it uses as much as digits as its factorization.

2535691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 31.

The square root of 2535691 is about 1592.3853176917. The cubic root of 2535691 is about 136.3636999461.

The spelling of 2535691 in words is "two million, five hundred thirty-five thousand, six hundred ninety-one".