2620847 has 2 divisors, whose sum is σ = 2620848. Its totient is φ = 2620846.

The previous prime is 2620829. The next prime is 2620883. The reversal of 2620847 is 7480262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2620847 - 2⁸ = 2620591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310423 + 1310424.

It is an arithmetic number, because the mean of its divisors is an integer number (1310424).

2^2620847 is an apocalyptic number.

2620847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620847 is an equidigital number, since it uses as much as digits as its factorization.

2620847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2620847 is about 1618.9030236552. The cubic root of 2620847 is about 137.8734224072.

The spelling of 2620847 in words is "two million, six hundred twenty thousand, eight hundred forty-seven".