85472273 has 4 divisors (see below), whose sum is σ = 87290880. Its totient is φ = 83653668.

The previous prime is 85472267. The next prime is 85472287. The reversal of 85472273 is 37227458.

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: 37227458 = 2 ⋅18613729.

It is a cyclic number.

It is not a de Polignac number, because 85472273 - 2⁸ = 85472017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85472263) 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, 909233 + ... + 909326.

It is an arithmetic number, because the mean of its divisors is an integer number (21822720).

Almost surely, 2^85472273 is an apocalyptic number.

It is an amenable number.

85472273 is a deficient number, since it is larger than the sum of its proper divisors (1818607).

85472273 is a wasteful number, since it uses less digits than its factorization.

85472273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818606.

The product of its digits is 94080, while the sum is 38.

The square root of 85472273 is about 9245.1215784326. The cubic root of 85472273 is about 440.4957789710.

The spelling of 85472273 in words is "eighty-five million, four hundred seventy-two thousand, two hundred seventy-three".