28806488 has 32 divisors (see below), whose sum is σ = 57576960. Its totient is φ = 13479840.

The previous prime is 28806443. The next prime is 28806497. The reversal of 28806488 is 88460882.

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, 6983 + ... + 10313.

It is an arithmetic number, because the mean of its divisors is an integer number (1799280).

Almost surely, 2^28806488 is an apocalyptic number.

It is an amenable number.

28806488 is a deficient number, since it is larger than the sum of its proper divisors (28770472).

28806488 is a wasteful number, since it uses less digits than its factorization.

28806488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407 (or 3403 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 28806488 is about 5367.1675956691. The cubic root of 28806488 is about 306.5467888940.

The spelling of 28806488 in words is "twenty-eight million, eight hundred six thousand, four hundred eighty-eight".