8729090 has 16 divisors (see below), whose sum is σ = 15809472. Its totient is φ = 3470064.

The previous prime is 8729081. The next prime is 8729093. The reversal of 8729090 is 909278.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 8729090.

It is not an unprimeable number, because it can be changed into a prime (8729093) 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 in 7 ways as a sum of consecutive naturals, for example, 944 + ... + 4283.

It is an arithmetic number, because the mean of its divisors is an integer number (988092).

Almost surely, 2^8729090 is an apocalyptic number.

8729090 is a deficient number, since it is larger than the sum of its proper divisors (7080382).

8729090 is a wasteful number, since it uses less digits than its factorization.

8729090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5401.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 8729090 is about 2954.5033423572. The cubic root of 8729090 is about 205.8999891575.

The spelling of 8729090 in words is "eight million, seven hundred twenty-nine thousand, ninety".