28880758 has 4 divisors (see below), whose sum is σ = 43321140. Its totient is φ = 14440378.

The previous prime is 28880737. The next prime is 28880759. The reversal of 28880758 is 85708882.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28880759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7220188 + ... + 7220191.

It is an arithmetic number, because the mean of its divisors is an integer number (10830285).

Almost surely, 2^28880758 is an apocalyptic number.

28880758 is a deficient number, since it is larger than the sum of its proper divisors (14440382).

28880758 is a wasteful number, since it uses less digits than its factorization.

28880758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14440381.

The product of its (nonzero) digits is 286720, while the sum is 46.

The square root of 28880758 is about 5374.0820611524. The cubic root of 28880758 is about 306.8100130623.

The spelling of 28880758 in words is "twenty-eight million, eight hundred eighty thousand, seven hundred fifty-eight".