2789506 has 4 divisors (see below), whose sum is σ = 4184262. Its totient is φ = 1394752.

The previous prime is 2789503. The next prime is 2789551. The reversal of 2789506 is 6059872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 116281 = 1635^2 + 341^2 .

It is not an unprimeable number, because it can be changed into a prime (2789503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697375 + ... + 697378.

2^2789506 is an apocalyptic number.

2789506 is a deficient number, since it is larger than the sum of its proper divisors (1394756).

2789506 is a wasteful number, since it uses less digits than its factorization.

2789506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394755.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2789506 is about 1670.1814272707. The cubic root of 2789506 is about 140.7696724131.

The spelling of 2789506 in words is "two million, seven hundred eighty-nine thousand, five hundred six".