85690236 has 12 divisors (see below), whose sum is σ = 199943912. Its totient is φ = 28563408.

The previous prime is 85690223. The next prime is 85690237. The reversal of 85690236 is 63209658.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 85690194 and 85690203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85690237) 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, 3570415 + ... + 3570438.

Almost surely, 2^85690236 is an apocalyptic number.

It is an amenable number.

85690236 is an abundant number, since it is smaller than the sum of its proper divisors (114253676).

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

85690236 is a wasteful number, since it uses less digits than its factorization.

85690236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140860 (or 7140858 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 85690236 is about 9256.9020735881. The cubic root of 85690236 is about 440.8698975020.

The spelling of 85690236 in words is "eighty-five million, six hundred ninety thousand, two hundred thirty-six".