85247233 has 4 divisors (see below), whose sum is σ = 85293268. Its totient is φ = 85201200.

The previous prime is 85247209. The next prime is 85247257. The reversal of 85247233 is 33274258.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85247209) and next prime (85247257).

It can be written as a sum of positive squares in 2 ways, for example, as 77563249 + 7683984 = 8807^2 + 2772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85247233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85247263) 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, 20118 + ... + 23983.

It is an arithmetic number, because the mean of its divisors is an integer number (21323317).

Almost surely, 2^85247233 is an apocalyptic number.

It is an amenable number.

85247233 is a deficient number, since it is larger than the sum of its proper divisors (46035).

85247233 is a wasteful number, since it uses less digits than its factorization.

85247233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46034.

The product of its digits is 40320, while the sum is 34.

The square root of 85247233 is about 9232.9428136429. The cubic root of 85247233 is about 440.1088453173.

The spelling of 85247233 in words is "eighty-five million, two hundred forty-seven thousand, two hundred thirty-three".