28670026 has 32 divisors (see below), whose sum is σ = 54286848. Its totient is φ = 11030640.

The previous prime is 28670023. The next prime is 28670063. The reversal of 28670026 is 62007682.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28670026.

It is not an unprimeable number, because it can be changed into a prime (28670023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11661 + ... + 13903.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 2^28670026 is an apocalyptic number.

28670026 is a deficient number, since it is larger than the sum of its proper divisors (25616822).

28670026 is a wasteful number, since it uses less digits than its factorization.

28670026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28670026 is about 5354.4398399833. The cubic root of 28670026 is about 306.0619650382.

The spelling of 28670026 in words is "twenty-eight million, six hundred seventy thousand, twenty-six".