85728803 has 2 divisors, whose sum is σ = 85728804. Its totient is φ = 85728802.

The previous prime is 85728787. The next prime is 85728833. The reversal of 85728803 is 30882758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85728803 - 2⁴ = 85728787 is a prime.

It is not a weakly prime, because it can be changed into another prime (85728833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42864401 + 42864402.

It is an arithmetic number, because the mean of its divisors is an integer number (42864402).

Almost surely, 2^85728803 is an apocalyptic number.

85728803 is a deficient number, since it is larger than the sum of its proper divisors (1).

85728803 is an equidigital number, since it uses as much as digits as its factorization.

85728803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 85728803 is about 9258.9849875675. The cubic root of 85728803 is about 440.9360290314.

The spelling of 85728803 in words is "eighty-five million, seven hundred twenty-eight thousand, eight hundred three".