28679577 has 8 divisors (see below), whose sum is σ = 38866560. Its totient is φ = 18806160.

The previous prime is 28679549. The next prime is 28679587. The reversal of 28679577 is 77597682.

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

It is not a de Polignac number, because 28679577 - 2¹¹ = 28677529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28679507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78177 + ... + 78542.

It is an arithmetic number, because the mean of its divisors is an integer number (4858320).

Almost surely, 2^28679577 is an apocalyptic number.

It is an amenable number.

28679577 is a deficient number, since it is larger than the sum of its proper divisors (10186983).

28679577 is a wasteful number, since it uses less digits than its factorization.

28679577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156783.

The product of its digits is 1481760, while the sum is 51.

The square root of 28679577 is about 5355.3316423915. The cubic root of 28679577 is about 306.0959479545.

The spelling of 28679577 in words is "twenty-eight million, six hundred seventy-nine thousand, five hundred seventy-seven".