867690 has 48 divisors (see below), whose sum is σ = 2336256. Its totient is φ = 223200.

The previous prime is 867689. The next prime is 867701. The reversal of 867690 is 96768.

It is a super-2 number, since 2×867690² = 1505771872200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2635 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (48672).

2⁸⁶⁷⁶⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168128).

867690 is an abundant number, since it is smaller than the sum of its proper divisors (1468566).

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

867690 is a wasteful number, since it uses less digits than its factorization.

867690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 867690 is about 931.4987922697. The cubic root of 867690 is about 95.3794610532.

It can be divided in two parts, 86 and 7690, that added together give a 5-th power (7776 = 6⁵).

The spelling of 867690 in words is "eight hundred sixty-seven thousand, six hundred ninety".