28649758 has 8 divisors (see below), whose sum is σ = 45236520. Its totient is φ = 13570920.

The previous prime is 28649749. The next prime is 28649771. The reversal of 28649758 is 85794682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376933 + ... + 377008.

It is an arithmetic number, because the mean of its divisors is an integer number (5654565).

Almost surely, 2^28649758 is an apocalyptic number.

28649758 is a deficient number, since it is larger than the sum of its proper divisors (16586762).

28649758 is a wasteful number, since it uses less digits than its factorization.

28649758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753962.

The product of its digits is 967680, while the sum is 49.

The square root of 28649758 is about 5352.5468704160. The cubic root of 28649758 is about 305.9898255122.

The spelling of 28649758 in words is "twenty-eight million, six hundred forty-nine thousand, seven hundred fifty-eight".