28426870 has 16 divisors (see below), whose sum is σ = 52359120. Its totient is φ = 11106144.

The previous prime is 28426861. The next prime is 28426889. The reversal of 28426870 is 7862482.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32625 + ... + 33484.

It is an arithmetic number, because the mean of its divisors is an integer number (3272445).

Almost surely, 2^28426870 is an apocalyptic number.

28426870 is a deficient number, since it is larger than the sum of its proper divisors (23932250).

28426870 is a wasteful number, since it uses less digits than its factorization.

28426870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66159.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 28426870 is about 5331.6854745943. The cubic root of 28426870 is about 305.1942505303.

The spelling of 28426870 in words is "twenty-eight million, four hundred twenty-six thousand, eight hundred seventy".