85898511 has 12 divisors (see below), whose sum is σ = 124478640. Its totient is φ = 57079680.

The previous prime is 85898509. The next prime is 85898539. The reversal of 85898511 is 11589858.

It is not a de Polignac number, because 85898511 - 2¹ = 85898509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85878511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12546 + ... + 18143.

It is an arithmetic number, because the mean of its divisors is an integer number (10373220).

Almost surely, 2^85898511 is an apocalyptic number.

85898511 is a deficient number, since it is larger than the sum of its proper divisors (38580129).

85898511 is a wasteful number, since it uses less digits than its factorization.

85898511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31006 (or 31003 counting only the distinct ones).

The product of its digits is 115200, while the sum is 45.

The square root of 85898511 is about 9268.1449600230. The cubic root of 85898511 is about 441.2267949715.

The spelling of 85898511 in words is "eighty-five million, eight hundred ninety-eight thousand, five hundred eleven".