85897098 has 72 divisors (see below), whose sum is σ = 224576352. Its totient is φ = 24535224.

The previous prime is 85897087. The next prime is 85897103. The reversal of 85897098 is 89079858.

It is a super-2 number, since 2×85897098² = 14756622889643208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22011 + ... + 25617.

It is an arithmetic number, because the mean of its divisors is an integer number (3119116).

Almost surely, 2^85897098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85897098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112288176).

85897098 is an abundant number, since it is smaller than the sum of its proper divisors (138679254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85897098 is a wasteful number, since it uses less digits than its factorization.

85897098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The square root of 85897098 is about 9268.0687308630. The cubic root of 85897098 is about 441.2243756169.

The spelling of 85897098 in words is "eighty-five million, eight hundred ninety-seven thousand, ninety-eight".