28604670 has 32 divisors (see below), whose sum is σ = 70115328. Its totient is φ = 7465248.

The previous prime is 28604657. The next prime is 28604699. The reversal of 28604670 is 7640682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8734 + ... + 11553.

It is an arithmetic number, because the mean of its divisors is an integer number (2191104).

Almost surely, 2^28604670 is an apocalyptic number.

28604670 is an abundant number, since it is smaller than the sum of its proper divisors (41510658).

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

28604670 is a wasteful number, since it uses less digits than its factorization.

28604670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20344.

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

The square root of 28604670 is about 5348.3333852706. Note that the first 4 decimals coincide. The cubic root of 28604670 is about 305.8292224912.

The spelling of 28604670 in words is "twenty-eight million, six hundred four thousand, six hundred seventy".