28796551 has 16 divisors (see below), whose sum is σ = 34265088. Its totient is φ = 23680800.

The previous prime is 28796519. The next prime is 28796563. The reversal of 28796551 is 15569782.

It is a cyclic number.

It is not a de Polignac number, because 28796551 - 2⁵ = 28796519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28796498 and 28796507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28793551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27921 + ... + 28933.

It is an arithmetic number, because the mean of its divisors is an integer number (2141568).

Almost surely, 2^28796551 is an apocalyptic number.

28796551 is a deficient number, since it is larger than the sum of its proper divisors (5468537).

28796551 is a wasteful number, since it uses less digits than its factorization.

28796551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its digits is 151200, while the sum is 43.

The square root of 28796551 is about 5366.2417947759. The cubic root of 28796551 is about 306.5115363521.

The spelling of 28796551 in words is "twenty-eight million, seven hundred ninety-six thousand, five hundred fifty-one".