921272 has 48 divisors (see below), whose sum is σ = 2057400. Its totient is φ = 383040.

The previous prime is 921259. The next prime is 921287. The reversal of 921272 is 272129.

921272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

Its product of digits (504) is a multiple of the sum of its prime factors (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31754 + ... + 31782.

2⁹²¹²⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 921272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028700).

921272 is an abundant number, since it is smaller than the sum of its proper divisors (1136128).

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

921272 is a wasteful number, since it uses less digits than its factorization.

921272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 61 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 921272 is about 959.8291514639. The cubic root of 921272 is about 97.3036856388.

It can be divided in two parts, 92127 and 2, that added together give a palindrome (92129).

The spelling of 921272 in words is "nine hundred twenty-one thousand, two hundred seventy-two".