85645733 has 4 divisors (see below), whose sum is σ = 85737120. Its totient is φ = 85554348.

The previous prime is 85645727. The next prime is 85645739. The reversal of 85645733 is 33754658.

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 an interprime number because it is at equal distance from previous prime (85645727) and next prime (85645739).

It is a cyclic number.

It is not a de Polignac number, because 85645733 - 2⁶ = 85645669 is a prime.

It is a super-2 number, since 2×85645733² = 14670383162214578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85645739) 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, 44273 + ... + 46166.

It is an arithmetic number, because the mean of its divisors is an integer number (21434280).

Almost surely, 2^85645733 is an apocalyptic number.

It is an amenable number.

85645733 is a deficient number, since it is larger than the sum of its proper divisors (91387).

85645733 is an equidigital number, since it uses as much as digits as its factorization.

85645733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91386.

The product of its digits is 302400, while the sum is 41.

The square root of 85645733 is about 9254.4979874653. The cubic root of 85645733 is about 440.7935627429.

The spelling of 85645733 in words is "eighty-five million, six hundred forty-five thousand, seven hundred thirty-three".