85289998 has 8 divisors (see below), whose sum is σ = 128541960. Its totient is φ = 42442680.

The previous prime is 85289989. The next prime is 85289999. The reversal of 85289998 is 89998258.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85289999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100633 + ... + 101476.

It is an arithmetic number, because the mean of its divisors is an integer number (16067745).

Almost surely, 2^85289998 is an apocalyptic number.

85289998 is a deficient number, since it is larger than the sum of its proper divisors (43251962).

85289998 is a wasteful number, since it uses less digits than its factorization.

85289998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202322.

The product of its digits is 3732480, while the sum is 58.

The square root of 85289998 is about 9235.2584154424. The cubic root of 85289998 is about 440.1824277969.

The spelling of 85289998 in words is "eighty-five million, two hundred eighty-nine thousand, nine hundred ninety-eight".