28671974 has 8 divisors (see below), whose sum is σ = 43923168. Its totient is φ = 14030920.

The previous prime is 28671967. The next prime is 28671977. The reversal of 28671974 is 47917682.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28671977) 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, 152417 + ... + 152604.

It is an arithmetic number, because the mean of its divisors is an integer number (5490396).

Almost surely, 2^28671974 is an apocalyptic number.

28671974 is a deficient number, since it is larger than the sum of its proper divisors (15251194).

28671974 is a wasteful number, since it uses less digits than its factorization.

28671974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305070.

The product of its digits is 169344, while the sum is 44.

The square root of 28671974 is about 5354.6217420094. The cubic root of 28671974 is about 306.0688967283.

The spelling of 28671974 in words is "twenty-eight million, six hundred seventy-one thousand, nine hundred seventy-four".