28970678 has 32 divisors (see below), whose sum is σ = 49517568. Its totient is φ = 12592800.

The previous prime is 28970677. The next prime is 28970717. The reversal of 28970678 is 87607982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28970677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72776 + ... + 73172.

It is an arithmetic number, because the mean of its divisors is an integer number (1547424).

Almost surely, 2^28970678 is an apocalyptic number.

28970678 is a deficient number, since it is larger than the sum of its proper divisors (20546890).

28970678 is a wasteful number, since it uses less digits than its factorization.

28970678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 28970678 is about 5382.4416392563. The cubic root of 28970678 is about 307.1280999786.

The spelling of 28970678 in words is "twenty-eight million, nine hundred seventy thousand, six hundred seventy-eight".