2642771 has 2 divisors, whose sum is σ = 2642772. Its totient is φ = 2642770.

The previous prime is 2642713. The next prime is 2642777. The reversal of 2642771 is 1772462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2642771 - 2⁶ = 2642707 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 6⁸ + 4 + 2¹⁷ + 7³ + 7⁷ + 1 .

It is equal to p₁₉₂₇₅₅ and since 2642771 and 192755 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2642777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321385 + 1321386.

It is an arithmetic number, because the mean of its divisors is an integer number (1321386).

2^2642771 is an apocalyptic number.

2642771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642771 is an equidigital number, since it uses as much as digits as its factorization.

2642771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 2642771 is about 1625.6601735910. The cubic root of 2642771 is about 138.2568032038.

The spelling of 2642771 in words is "two million, six hundred forty-two thousand, seven hundred seventy-one".