2642587 has 2 divisors, whose sum is σ = 2642588. Its totient is φ = 2642586.

The previous prime is 2642569. The next prime is 2642603. The reversal of 2642587 is 7852462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2642587 - 2¹⁹ = 2118299 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2642537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321293 + 1321294.

It is an arithmetic number, because the mean of its divisors is an integer number (1321294).

2^2642587 is an apocalyptic number.

2642587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642587 is an equidigital number, since it uses as much as digits as its factorization.

2642587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 2642587 is about 1625.6035802126. The cubic root of 2642587 is about 138.2535944705.

The spelling of 2642587 in words is "two million, six hundred forty-two thousand, five hundred eighty-seven".