85187698 has 4 divisors (see below), whose sum is σ = 127781550. Its totient is φ = 42593848.

The previous prime is 85187671. The next prime is 85187701. The reversal of 85187698 is 89678158.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55995289 + 29192409 = 7483^2 + 5403^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21296923 + ... + 21296926.

Almost surely, 2^85187698 is an apocalyptic number.

85187698 is a deficient number, since it is larger than the sum of its proper divisors (42593852).

85187698 is a wasteful number, since it uses less digits than its factorization.

85187698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42593851.

The product of its digits is 967680, while the sum is 52.

The square root of 85187698 is about 9229.7181972149. The cubic root of 85187698 is about 440.0063669878.

The spelling of 85187698 in words is "eighty-five million, one hundred eighty-seven thousand, six hundred ninety-eight".