2389747 has 2 divisors, whose sum is σ = 2389748. Its totient is φ = 2389746.

The previous prime is 2389733. The next prime is 2389757. The reversal of 2389747 is 7479832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2389747 - 2⁷ = 2389619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2389757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194873 + 1194874.

It is an arithmetic number, because the mean of its divisors is an integer number (1194874).

2^2389747 is an apocalyptic number.

2389747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2389747 is an equidigital number, since it uses as much as digits as its factorization.

2389747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 2389747 is about 1545.8806551607. The cubic root of 2389747 is about 133.6956596444.

It can be divided in two parts, 2389 and 747, that added together give a square (3136 = 56²).

The spelling of 2389747 in words is "two million, three hundred eighty-nine thousand, seven hundred forty-seven".