85583969 has 4 divisors (see below), whose sum is σ = 85681344. Its totient is φ = 85486596.

The previous prime is 85583957. The next prime is 85583987. The reversal of 85583969 is 96938558.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96938558 = 2 ⋅48469279.

It is a cyclic number.

It is not a de Polignac number, because 85583969 - 2²⁰ = 84535393 is a prime.

It is a super-2 number, since 2×85583969² = 14649231499585922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85583969.

It is not an unprimeable number, because it can be changed into a prime (85583909) 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, 47357 + ... + 49130.

It is an arithmetic number, because the mean of its divisors is an integer number (21420336).

Almost surely, 2^85583969 is an apocalyptic number.

It is an amenable number.

85583969 is a deficient number, since it is larger than the sum of its proper divisors (97375).

85583969 is an equidigital number, since it uses as much as digits as its factorization.

85583969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97374.

The product of its digits is 2332800, while the sum is 53.

The square root of 85583969 is about 9251.1604136995. The cubic root of 85583969 is about 440.6875768409.

The spelling of 85583969 in words is "eighty-five million, five hundred eighty-three thousand, nine hundred sixty-nine".