28668470 has 8 divisors (see below), whose sum is σ = 51603264. Its totient is φ = 11467384.

The previous prime is 28668469. The next prime is 28668481. The reversal of 28668470 is 7486682.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433414 + ... + 1433433.

It is an arithmetic number, because the mean of its divisors is an integer number (6450408).

Almost surely, 2^28668470 is an apocalyptic number.

28668470 is a deficient number, since it is larger than the sum of its proper divisors (22934794).

28668470 is a wasteful number, since it uses less digits than its factorization.

28668470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866854.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 28668470 is about 5354.2945380321. The cubic root of 28668470 is about 306.0564280006.

The spelling of 28668470 in words is "twenty-eight million, six hundred sixty-eight thousand, four hundred seventy".