28692797 has 16 divisors (see below), whose sum is σ = 33962880. Its totient is φ = 23727168.

The previous prime is 28692791. The next prime is 28692823. The reversal of 28692797 is 79729682.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28692797 - 2⁸ = 28692541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28692791) 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, 35603 + ... + 36399.

It is an arithmetic number, because the mean of its divisors is an integer number (2122680).

Almost surely, 2^28692797 is an apocalyptic number.

It is an amenable number.

28692797 is a deficient number, since it is larger than the sum of its proper divisors (5270083).

28692797 is a wasteful number, since it uses less digits than its factorization.

28692797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980.

The product of its digits is 762048, while the sum is 50.

The square root of 28692797 is about 5356.5657841569. The cubic root of 28692797 is about 306.1429729022.

It can be divided in two parts, 28692 and 797, that multiplied together give a square (22867524 = 4782²).

The spelling of 28692797 in words is "twenty-eight million, six hundred ninety-two thousand, seven hundred ninety-seven".