85742899 has 12 divisors (see below), whose sum is σ = 96257952. Its totient is φ = 76284560.

The previous prime is 85742897. The next prime is 85742911. The reversal of 85742899 is 99824758.

It is not a de Polignac number, because 85742899 - 2¹ = 85742897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85742893) 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 11 ways as a sum of consecutive naturals, for example, 1852 + ... + 13225.

It is an arithmetic number, because the mean of its divisors is an integer number (8021496).

Almost surely, 2^85742899 is an apocalyptic number.

85742899 is a deficient number, since it is larger than the sum of its proper divisors (10515053).

85742899 is a wasteful number, since it uses less digits than its factorization.

85742899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15146 (or 15135 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 85742899 is about 9259.7461628276. The cubic root of 85742899 is about 440.9601947471.

The spelling of 85742899 in words is "eighty-five million, seven hundred forty-two thousand, eight hundred ninety-nine".