2287739 has 2 divisors, whose sum is σ = 2287740. Its totient is φ = 2287738.

The previous prime is 2287699. The next prime is 2287777. The reversal of 2287739 is 9377822.

It is an a-pointer prime, because the next prime (2287777) can be obtained adding 2287739 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2287739 - 2¹⁶ = 2222203 is a prime.

It is not a weakly prime, because it can be changed into another prime (2287039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1143869 + 1143870.

It is an arithmetic number, because the mean of its divisors is an integer number (1143870).

2^2287739 is an apocalyptic number.

2287739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287739 is an equidigital number, since it uses as much as digits as its factorization.

2287739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 2287739 is about 1512.5273551245. The cubic root of 2287739 is about 131.7656347903.

The spelling of 2287739 in words is "two million, two hundred eighty-seven thousand, seven hundred thirty-nine".