7365921 has 4 divisors (see below), whose sum is σ = 9821232. Its totient is φ = 4910612.

The previous prime is 7365899. The next prime is 7365929. The reversal of 7365921 is 1295637.

7365921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7365921 - 2¹³ = 7357729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7365929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227651 + ... + 1227656.

It is an arithmetic number, because the mean of its divisors is an integer number (2455308).

Almost surely, 2^7365921 is an apocalyptic number.

It is an amenable number.

7365921 is a deficient number, since it is larger than the sum of its proper divisors (2455311).

7365921 is a wasteful number, since it uses less digits than its factorization.

7365921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455310.

The product of its digits is 11340, while the sum is 33.

The square root of 7365921 is about 2714.0230286422. The cubic root of 7365921 is about 194.5699133857.

The spelling of 7365921 in words is "seven million, three hundred sixty-five thousand, nine hundred twenty-one".