28906826 has 8 divisors (see below), whose sum is σ = 46695684. Its totient is φ = 13341600.

The previous prime is 28906819. The next prime is 28906831. The reversal of 28906826 is 62860982.

It can be written as a sum of positive squares in 2 ways, for example, as 25999801 + 2907025 = 5099^2 + 1705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555875 + ... + 555926.

Almost surely, 2^28906826 is an apocalyptic number.

28906826 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28906826 is a deficient number, since it is larger than the sum of its proper divisors (17788858).

28906826 is a wasteful number, since it uses less digits than its factorization.

28906826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111816.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 28906826 is about 5376.5068585467. The cubic root of 28906826 is about 306.9022950158.

The spelling of 28906826 in words is "twenty-eight million, nine hundred six thousand, eight hundred twenty-six".