85048321 has 2 divisors, whose sum is σ = 85048322. Its totient is φ = 85048320.

The previous prime is 85048307. The next prime is 85048343. The reversal of 85048321 is 12384058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84640000 + 408321 = 9200^2 + 639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85048321 is a prime.

It is not a weakly prime, because it can be changed into another prime (85048361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42524160 + 42524161.

It is an arithmetic number, because the mean of its divisors is an integer number (42524161).

Almost surely, 2^85048321 is an apocalyptic number.

It is an amenable number.

85048321 is a deficient number, since it is larger than the sum of its proper divisors (1).

85048321 is an equidigital number, since it uses as much as digits as its factorization.

85048321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 85048321 is about 9222.1646591242. The cubic root of 85048321 is about 439.7662687686.

The spelling of 85048321 in words is "eighty-five million, forty-eight thousand, three hundred twenty-one".