28803061 has 32 divisors (see below), whose sum is σ = 36864000. Its totient is φ = 21954240.

The previous prime is 28803059. The next prime is 28803091. The reversal of 28803061 is 16030882.

It is not a de Polignac number, because 28803061 - 2¹ = 28803059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28803001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144640 + ... + 144838.

It is an arithmetic number, because the mean of its divisors is an integer number (1152000).

Almost surely, 2^28803061 is an apocalyptic number.

It is an amenable number.

28803061 is a deficient number, since it is larger than the sum of its proper divisors (8060939).

28803061 is a wasteful number, since it uses less digits than its factorization.

28803061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28803061 is about 5366.8483302586. The cubic root of 28803061 is about 306.5346321707.

The spelling of 28803061 in words is "twenty-eight million, eight hundred three thousand, sixty-one".