85898799 has 64 divisors (see below), whose sum is σ = 152821760. Its totient is φ = 47239200.

The previous prime is 85898789. The next prime is 85898801. The reversal of 85898799 is 99789858.

It is not a de Polignac number, because 85898799 - 2¹¹ = 85896751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

Its product of digits (13063680) is a multiple of the sum of its prime factors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85898759) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 474489 + ... + 474669.

It is an arithmetic number, because the mean of its divisors is an integer number (2387840).

Almost surely, 2^85898799 is an apocalyptic number.

85898799 is a deficient number, since it is larger than the sum of its proper divisors (66922961).

85898799 is an equidigital number, since it uses as much as digits as its factorization.

85898799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 222 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The square root of 85898799 is about 9268.1604970997. The cubic root of 85898799 is about 441.2272880851.

The spelling of 85898799 in words is "eighty-five million, eight hundred ninety-eight thousand, seven hundred ninety-nine".