28670074 has 8 divisors (see below), whose sum is σ = 43103520. Its totient is φ = 14302236.

The previous prime is 28670063. The next prime is 28670077. The reversal of 28670074 is 47007682.

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

It is not an unprimeable number, because it can be changed into a prime (28670077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15294 + ... + 17065.

It is an arithmetic number, because the mean of its divisors is an integer number (5387940).

Almost surely, 2^28670074 is an apocalyptic number.

28670074 is a deficient number, since it is larger than the sum of its proper divisors (14433446).

28670074 is a wasteful number, since it uses less digits than its factorization.

28670074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32804.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 28670074 is about 5354.4443222430. Note that the first 3 decimals coincide. The cubic root of 28670074 is about 306.0621358434.

The spelling of 28670074 in words is "twenty-eight million, six hundred seventy thousand, seventy-four".