85257898 has 8 divisors (see below), whose sum is σ = 139512960. Its totient is φ = 38753580.

The previous prime is 85257889. The next prime is 85257899. The reversal of 85257898 is 89875258.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (85257899) 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, 1937658 + ... + 1937701.

It is an arithmetic number, because the mean of its divisors is an integer number (17439120).

Almost surely, 2^85257898 is an apocalyptic number.

85257898 is a deficient number, since it is larger than the sum of its proper divisors (54255062).

85257898 is a wasteful number, since it uses less digits than its factorization.

85257898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875372.

The product of its digits is 1612800, while the sum is 52.

The square root of 85257898 is about 9233.5203470832. The cubic root of 85257898 is about 440.1271980737.

The spelling of 85257898 in words is "eighty-five million, two hundred fifty-seven thousand, eight hundred ninety-eight".