771121 has 8 divisors (see below), whose sum is σ = 866880. Its totient is φ = 680592.

The previous prime is 771109. The next prime is 771143. The reversal of 771121 is 121177.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 771121 - 2⁷ = 770993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (771181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991 + ... + 1588.

It is an arithmetic number, because the mean of its divisors is an integer number (108360).

2⁷⁷¹¹²¹ is an apocalyptic number.

It is an amenable number.

771121 is a deficient number, since it is larger than the sum of its proper divisors (95759).

771121 is a wasteful number, since it uses less digits than its factorization.

771121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615.

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

The square root of 771121 is about 878.1349554596. The cubic root of 771121 is about 91.7010222004.

Adding to 771121 its reverse (121177), we get a palindrome (892298).

The spelling of 771121 in words is "seven hundred seventy-one thousand, one hundred twenty-one", and thus it is an iban number.