85017637 has 4 divisors (see below), whose sum is σ = 88714080. Its totient is φ = 81321196.

The previous prime is 85017631. The next prime is 85017721. The reversal of 85017637 is 73671058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85017637 - 2¹⁵ = 84984869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85017596 and 85017605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85017631) 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, 1848187 + ... + 1848232.

It is an arithmetic number, because the mean of its divisors is an integer number (22178520).

Almost surely, 2^85017637 is an apocalyptic number.

It is an amenable number.

85017637 is a deficient number, since it is larger than the sum of its proper divisors (3696443).

85017637 is a wasteful number, since it uses less digits than its factorization.

85017637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696442.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 85017637 is about 9220.5009083021. The cubic root of 85017637 is about 439.7133756558.

The spelling of 85017637 in words is "eighty-five million, seventeen thousand, six hundred thirty-seven".