28820035 has 16 divisors (see below), whose sum is σ = 36592704. Its totient is φ = 21745152.

The previous prime is 28820023. The next prime is 28820039. The reversal of 28820035 is 53002882.

It is a cyclic number.

It is not a de Polignac number, because 28820035 - 2¹³ = 28811843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28819985 and 28820012.

It is not an unprimeable number, because it can be changed into a prime (28820039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6679 + ... + 10111.

It is an arithmetic number, because the mean of its divisors is an integer number (2287044).

Almost surely, 2^28820035 is an apocalyptic number.

28820035 is a deficient number, since it is larger than the sum of its proper divisors (7772669).

28820035 is a wasteful number, since it uses less digits than its factorization.

28820035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28820035 is about 5368.4294723876. The cubic root of 28820035 is about 306.5948352292.

The spelling of 28820035 in words is "twenty-eight million, eight hundred twenty thousand, thirty-five".