285882965 has 16 divisors (see below), whose sum is σ = 368223408. Its totient is φ = 212299776.

The previous prime is 285882953. The next prime is 285882967. The reversal of 285882965 is 569288582.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 18037009 + 267845956 = 4247^2 + 16366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285882965 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 (285882967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16832 + ... + 29241.

It is an arithmetic number, because the mean of its divisors is an integer number (23013963).

Almost surely, 2^285882965 is an apocalyptic number.

It is an amenable number.

285882965 is a deficient number, since it is larger than the sum of its proper divisors (82340443).

285882965 is a wasteful number, since it uses less digits than its factorization.

285882965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46168.

The product of its digits is 2764800, while the sum is 53.

The square root of 285882965 is about 16908.0739589109. The cubic root of 285882965 is about 658.7633446930.

The spelling of 285882965 in words is "two hundred eighty-five million, eight hundred eighty-two thousand, nine hundred sixty-five".