28609758 has 12 divisors (see below), whose sum is σ = 61987848. Its totient is φ = 9536580.

The previous prime is 28609751. The next prime is 28609813. The reversal of 28609758 is 85790682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28609751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 794698 + ... + 794733.

It is an arithmetic number, because the mean of its divisors is an integer number (5165654).

Almost surely, 2^28609758 is an apocalyptic number.

28609758 is an abundant number, since it is smaller than the sum of its proper divisors (33378090).

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

28609758 is a wasteful number, since it uses less digits than its factorization.

28609758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589439 (or 1589436 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28609758 is about 5348.8090263160. The cubic root of 28609758 is about 305.8473543421.

The spelling of 28609758 in words is "twenty-eight million, six hundred nine thousand, seven hundred fifty-eight".