28880937 has 12 divisors (see below), whose sum is σ = 41831920. Its totient is φ = 19200888.

The previous prime is 28880923. The next prime is 28880941. The reversal of 28880937 is 73908882.

It is not a de Polignac number, because 28880937 - 2¹⁰ = 28879913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28880892 and 28880901.

It is not an unprimeable number, because it can be changed into a prime (28880947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823 + ... + 7644.

Almost surely, 2^28880937 is an apocalyptic number.

It is an amenable number.

28880937 is a deficient number, since it is larger than the sum of its proper divisors (12950983).

28880937 is a wasteful number, since it uses less digits than its factorization.

28880937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852 (or 8849 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 28880937 is about 5374.0987151335. The cubic root of 28880937 is about 306.8106469201.

It can be divided in two parts, 288 and 80937, that added together give a square (81225 = 285²).

The spelling of 28880937 in words is "twenty-eight million, eight hundred eighty thousand, nine hundred thirty-seven".