28733877 has 24 divisors (see below), whose sum is σ = 43689984. Its totient is φ = 18162144.

The previous prime is 28733857. The next prime is 28733891. The reversal of 28733877 is 77833782.

It is not a de Polignac number, because 28733877 - 2⁶ = 28733813 is a prime.

It is a super-2 number, since 2×28733877² = 1651271374902258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28733827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25743 + ... + 26835.

It is an arithmetic number, because the mean of its divisors is an integer number (1820416).

Almost surely, 2^28733877 is an apocalyptic number.

It is an amenable number.

28733877 is a deficient number, since it is larger than the sum of its proper divisors (14956107).

28733877 is a wasteful number, since it uses less digits than its factorization.

28733877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1246 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 28733877 is about 5360.3989590328. The cubic root of 28733877 is about 306.2890067211.

The spelling of 28733877 in words is "twenty-eight million, seven hundred thirty-three thousand, eight hundred seventy-seven".