7701121 has 4 divisors (see below), whose sum is σ = 7780612. Its totient is φ = 7621632.

The previous prime is 7701107. The next prime is 7701131. The reversal of 7701121 is 1211077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4260096 + 3441025 = 2064^2 + 1855^2 .

It is a cyclic number.

It is not a de Polignac number, because 7701121 - 2¹¹ = 7699073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7701131) 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, 39600 + ... + 39793.

It is an arithmetic number, because the mean of its divisors is an integer number (1945153).

Almost surely, 2^7701121 is an apocalyptic number.

It is an amenable number.

7701121 is a deficient number, since it is larger than the sum of its proper divisors (79491).

7701121 is an equidigital number, since it uses as much as digits as its factorization.

7701121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79490.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 7701121 is about 2775.0893679303. The cubic root of 7701121 is about 197.4776645147.

Adding to 7701121 its reverse (1211077), we get a palindrome (8912198).

It can be divided in two parts, 770 and 1121, that added together give a triangular number (1891 = T₆₁).

The spelling of 7701121 in words is "seven million, seven hundred one thousand, one hundred twenty-one".