867280212 has 18 divisors (see below), whose sum is σ = 2192291738. Its totient is φ = 289093392.

The previous prime is 867280207. The next prime is 867280231. The reversal of 867280212 is 212082768.

It is a happy number.

867280212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 855211536 + 12068676 = 29244^2 + 3474^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×867280212² = 1504349932253529888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 24091117 = 867280212 / (8 + 6 + 7 + 2 + 8 + 0 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12045523 + ... + 12045594.

Almost surely, 2^867280212 is an apocalyptic number.

It is an amenable number.

867280212 is an abundant number, since it is smaller than the sum of its proper divisors (1325011526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

867280212 is a wasteful number, since it uses less digits than its factorization.

867280212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24091127 (or 24091122 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 867280212 is about 29449.6215934942. The cubic root of 867280212 is about 953.6444358793.

The spelling of 867280212 in words is "eight hundred sixty-seven million, two hundred eighty thousand, two hundred twelve".