867447 has 24 divisors (see below), whose sum is σ = 1466400. Its totient is φ = 493920.

The previous prime is 867443. The next prime is 867457. The reversal of 867447 is 744768.

It is a happy number.

It is not a de Polignac number, because 867447 - 2² = 867443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867443) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2947 + ... + 3227.

It is an arithmetic number, because the mean of its divisors is an integer number (61100).

2⁸⁶⁷⁴⁴⁷ is an apocalyptic number.

867447 is a deficient number, since it is larger than the sum of its proper divisors (598953).

867447 is a wasteful number, since it uses less digits than its factorization.

867447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 291 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 867447 is about 931.3683481845. The cubic root of 867447 is about 95.3705564240.

The spelling of 867447 in words is "eight hundred sixty-seven thousand, four hundred forty-seven".