4089506 has 4 divisors (see below), whose sum is σ = 6134262. Its totient is φ = 2044752.

The previous prime is 4089473. The next prime is 4089509. The reversal of 4089506 is 6059804.

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., 2588881 + 1500625 = 1609^2 + 1225^2 .

It is not an unprimeable number, because it can be changed into a prime (4089509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022375 + ... + 1022378.

Almost surely, 2^4089506 is an apocalyptic number.

4089506 is a deficient number, since it is larger than the sum of its proper divisors (2044756).

4089506 is a wasteful number, since it uses less digits than its factorization.

4089506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044755.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 4089506 is about 2022.2527042880. The cubic root of 4089506 is about 159.9153979818.

The spelling of 4089506 in words is "four million, eighty-nine thousand, five hundred six".