867634 has 4 divisors (see below), whose sum is σ = 1301454. Its totient is φ = 433816.

The previous prime is 867631. The next prime is 867641. The reversal of 867634 is 436768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 511225 + 356409 = 715^2 + 597^2 .

It is a d-powerful number, because it can be written as 8⁵ + 6⁴ + 6⁵ + 7⁷ + 3⁷ + 4³ .

It is a self number, because there is not a number n which added to its sum of digits gives 867634.

It is not an unprimeable number, because it can be changed into a prime (867631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216907 + ... + 216910.

2⁸⁶⁷⁶³⁴ is an apocalyptic number.

867634 is a deficient number, since it is larger than the sum of its proper divisors (433820).

867634 is a wasteful number, since it uses less digits than its factorization.

867634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433819.

The product of its digits is 24192, while the sum is 34.

The square root of 867634 is about 931.4687327012. The cubic root of 867634 is about 95.3774091050.

The spelling of 867634 in words is "eight hundred sixty-seven thousand, six hundred thirty-four".