28669326 has 32 divisors (see below), whose sum is σ = 65845248. Its totient is φ = 8151840.

The previous prime is 28669297. The next prime is 28669331. The reversal of 28669326 is 62396682.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7836 + ... + 10896.

It is an arithmetic number, because the mean of its divisors is an integer number (2057664).

Almost surely, 2^28669326 is an apocalyptic number.

28669326 is an abundant number, since it is smaller than the sum of its proper divisors (37175922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28669326 is a wasteful number, since it uses less digits than its factorization.

28669326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296.

The product of its digits is 186624, while the sum is 42.

The square root of 28669326 is about 5354.3744732695. The cubic root of 28669326 is about 306.0594741078.

The spelling of 28669326 in words is "twenty-eight million, six hundred sixty-nine thousand, three hundred twenty-six".