770121 has 16 divisors (see below), whose sum is σ = 1245120. Its totient is φ = 466560.

The previous prime is 770113. The next prime is 770123. The reversal of 770121 is 121077.

It is not a de Polignac number, because 770121 - 2³ = 770113 is a prime.

770121 is a modest number, since divided by 121 gives 77 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 770094 and 770103.

It is not an unprimeable number, because it can be changed into a prime (770123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (77820).

2⁷⁷⁰¹²¹ is an apocalyptic number.

It is an amenable number.

770121 is a deficient number, since it is larger than the sum of its proper divisors (474999).

770121 is a wasteful number, since it uses less digits than its factorization.

770121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 18.

The square root of 770121 is about 877.5653821796. The cubic root of 770121 is about 91.6613653500.

Adding to 770121 its reverse (121077), we get a palindrome (891198).

The spelling of 770121 in words is "seven hundred seventy thousand, one hundred twenty-one", and thus it is an iban number.