85196639 has 8 divisors (see below), whose sum is σ = 98409168. Its totient is φ = 72895360.

The previous prime is 85196611. The next prime is 85196653. The reversal of 85196639 is 93669158.

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

It is a cyclic number.

It is not a de Polignac number, because 85196639 - 2¹⁶ = 85131103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85196593 and 85196602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85196609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227612 + ... + 227985.

It is an arithmetic number, because the mean of its divisors is an integer number (12301146).

Almost surely, 2^85196639 is an apocalyptic number.

85196639 is a deficient number, since it is larger than the sum of its proper divisors (13212529).

85196639 is a wasteful number, since it uses less digits than its factorization.

85196639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455625.

The product of its digits is 349920, while the sum is 47.

The square root of 85196639 is about 9230.2025438232. The cubic root of 85196639 is about 440.0217602875.

The spelling of 85196639 in words is "eighty-five million, one hundred ninety-six thousand, six hundred thirty-nine".