7921360 has 20 divisors (see below), whose sum is σ = 18417348. Its totient is φ = 3168512.

The previous prime is 7921351. The next prime is 7921373. The reversal of 7921360 is 631297.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 7096896 = 908^2 + 2664^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49429 + ... + 49588.

Almost surely, 2^7921360 is an apocalyptic number.

It is an amenable number.

7921360 is an abundant number, since it is smaller than the sum of its proper divisors (10495988).

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

7921360 is a wasteful number, since it uses less digits than its factorization.

7921360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99030 (or 99024 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 7921360 is about 2814.4910730006. The cubic root of 7921360 is about 199.3425075537.

It can be divided in two parts, 7921 and 360, that added together give a square (8281 = 91²).

The spelling of 7921360 in words is "seven million, nine hundred twenty-one thousand, three hundred sixty".