322012287 has 8 divisors (see below), whose sum is σ = 477055280. Its totient is φ = 214674840.

The previous prime is 322012261. The next prime is 322012297. The reversal of 322012287 is 782210223.

It is a happy number.

It is not a de Polignac number, because 322012287 - 2²⁰ = 320963711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11926381 = 322012287 / (3 + 2 + 2 + 0 + 1 + 2 + 2 + 8 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 322012287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322012297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5963164 + ... + 5963217.

It is an arithmetic number, because the mean of its divisors is an integer number (59631910).

Almost surely, 2^322012287 is an apocalyptic number.

322012287 is a deficient number, since it is larger than the sum of its proper divisors (155042993).

322012287 is a wasteful number, since it uses less digits than its factorization.

322012287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11926390 (or 11926384 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 322012287 is about 17944.7008055303. The cubic root of 322012287 is about 685.4211181491.

The spelling of 322012287 in words is "three hundred twenty-two million, twelve thousand, two hundred eighty-seven".