28694620 has 12 divisors (see below), whose sum is σ = 60258744. Its totient is φ = 11477840.

The previous prime is 28694609. The next prime is 28694651. The reversal of 28694620 is 2649682.

It is a self number, because there is not a number n which added to its sum of digits gives 28694620.

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, 717346 + ... + 717385.

It is an arithmetic number, because the mean of its divisors is an integer number (5021562).

Almost surely, 2^28694620 is an apocalyptic number.

28694620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28694620 is an abundant number, since it is smaller than the sum of its proper divisors (31564124).

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

28694620 is a wasteful number, since it uses less digits than its factorization.

28694620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434740 (or 1434738 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 28694620 is about 5356.7359464510. The cubic root of 28694620 is about 306.1494563740.

The spelling of 28694620 in words is "twenty-eight million, six hundred ninety-four thousand, six hundred twenty".