28064670 has 16 divisors (see below), whose sum is σ = 67355280. Its totient is φ = 7483904.

The previous prime is 28064651. The next prime is 28064689. The reversal of 28064670 is 7646082.

It is an interprime number because it is at equal distance from previous prime (28064651) and next prime (28064689).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467715 + ... + 467774.

It is an arithmetic number, because the mean of its divisors is an integer number (4209705).

Almost surely, 2^28064670 is an apocalyptic number.

28064670 is an abundant number, since it is smaller than the sum of its proper divisors (39290610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28064670 is a wasteful number, since it uses less digits than its factorization.

28064670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935499.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28064670 is about 5297.6098384083. The cubic root of 28064670 is about 303.8924986354.

The spelling of 28064670 in words is "twenty-eight million, sixty-four thousand, six hundred seventy".