85373279 has 2 divisors, whose sum is σ = 85373280. Its totient is φ = 85373278.

The previous prime is 85373257. The next prime is 85373293. The reversal of 85373279 is 97237358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85373279 - 2¹² = 85369183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85373579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42686639 + 42686640.

It is an arithmetic number, because the mean of its divisors is an integer number (42686640).

Almost surely, 2^85373279 is an apocalyptic number.

85373279 is a deficient number, since it is larger than the sum of its proper divisors (1).

85373279 is an equidigital number, since it uses as much as digits as its factorization.

85373279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 85373279 is about 9239.7661766952. The cubic root of 85373279 is about 440.3256525139.

The spelling of 85373279 in words is "eighty-five million, three hundred seventy-three thousand, two hundred seventy-nine".