921084 has 12 divisors (see below), whose sum is σ = 2149224. Its totient is φ = 307024.

The previous prime is 921079. The next prime is 921091. The reversal of 921084 is 480129.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 921084.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38367 + ... + 38390.

It is an arithmetic number, because the mean of its divisors is an integer number (179102).

2⁹²¹⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

921084 is an abundant number, since it is smaller than the sum of its proper divisors (1228140).

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

921084 is a wasteful number, since it uses less digits than its factorization.

921084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76764 (or 76762 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 921084 is about 959.7312123715. The cubic root of 921084 is about 97.2970664075.

It can be divided in two parts, 92 and 1084, that added together give a triangular number (1176 = T₄₈).

The spelling of 921084 in words is "nine hundred twenty-one thousand, eighty-four".