85304071 has 4 divisors (see below), whose sum is σ = 85456152. Its totient is φ = 85151992.

The previous prime is 85304057. The next prime is 85304099. The reversal of 85304071 is 17040358.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85304071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85304041) 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, 75196 + ... + 76321.

It is an arithmetic number, because the mean of its divisors is an integer number (21364038).

Almost surely, 2^85304071 is an apocalyptic number.

85304071 is a deficient number, since it is larger than the sum of its proper divisors (152081).

85304071 is a wasteful number, since it uses less digits than its factorization.

85304071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152080.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 85304071 is about 9236.0203009738. The cubic root of 85304071 is about 440.2066367576.

The spelling of 85304071 in words is "eighty-five million, three hundred four thousand, seventy-one".