764285 has 4 divisors (see below), whose sum is σ = 917148. Its totient is φ = 611424.

The previous prime is 764273. The next prime is 764293. The reversal of 764285 is 582467.

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 438244 + 326041 = 662^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 764285 - 2¹⁰ = 763261 is a prime.

It is a super-2 number, since 2×764285² = 1168263122450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 764285.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76424 + ... + 76433.

It is an arithmetic number, because the mean of its divisors is an integer number (229287).

2⁷⁶⁴²⁸⁵ is an apocalyptic number.

It is an amenable number.

764285 is a deficient number, since it is larger than the sum of its proper divisors (152863).

764285 is a wasteful number, since it uses less digits than its factorization.

764285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152862.

The product of its digits is 13440, while the sum is 32.

The square root of 764285 is about 874.2339503817. The cubic root of 764285 is about 91.4292404852.

The spelling of 764285 in words is "seven hundred sixty-four thousand, two hundred eighty-five".