7741921 has 16 divisors (see below), whose sum is σ = 8755200. Its totient is φ = 6786000.

The previous prime is 7741879. The next prime is 7741933. The reversal of 7741921 is 1291477.

It is a cyclic number.

It is not a de Polignac number, because 7741921 - 2¹⁵ = 7709153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7741121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51196 + ... + 51346.

It is an arithmetic number, because the mean of its divisors is an integer number (547200).

Almost surely, 2^7741921 is an apocalyptic number.

It is an amenable number.

7741921 is a deficient number, since it is larger than the sum of its proper divisors (1013279).

7741921 is a wasteful number, since it uses less digits than its factorization.

7741921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 3528, while the sum is 31.

The square root of 7741921 is about 2782.4307718252. The cubic root of 7741921 is about 197.8257914005.

The spelling of 7741921 in words is "seven million, seven hundred forty-one thousand, nine hundred twenty-one".