285465097 has 4 divisors (see below), whose sum is σ = 288672660. Its totient is φ = 282257536.

The previous prime is 285465073. The next prime is 285465107. The reversal of 285465097 is 790564582.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63425296 + 222039801 = 7964^2 + 14901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285465097 is a prime.

It is a super-4 number, since 4×285465097⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285465497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603648 + ... + 1603825.

It is an arithmetic number, because the mean of its divisors is an integer number (72168165).

Almost surely, 2^285465097 is an apocalyptic number.

It is an amenable number.

285465097 is a deficient number, since it is larger than the sum of its proper divisors (3207563).

285465097 is an equidigital number, since it uses as much as digits as its factorization.

285465097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207562.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 285465097 is about 16895.7123850994. The cubic root of 285465097 is about 658.4422221995.

The spelling of 285465097 in words is "two hundred eighty-five million, four hundred sixty-five thousand, ninety-seven".