769121 has 4 divisors (see below), whose sum is σ = 771012. Its totient is φ = 767232.

The previous prime is 769117. The next prime is 769123. The reversal of 769121 is 121967.

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 672400 + 96721 = 820^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 769121 - 2² = 769117 is a prime.

It is a super-2 number, since 2×769121² = 1183094225282, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 769121.

It is not an unprimeable number, because it can be changed into a prime (769123) 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 3 ways as a sum of consecutive naturals, for example, 56 + ... + 1241.

It is an arithmetic number, because the mean of its divisors is an integer number (192753).

2⁷⁶⁹¹²¹ is an apocalyptic number.

It is an amenable number.

769121 is a deficient number, since it is larger than the sum of its proper divisors (1891).

769121 is a wasteful number, since it uses less digits than its factorization.

769121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890.

The product of its digits is 756, while the sum is 26.

The square root of 769121 is about 876.9954389847. The cubic root of 769121 is about 91.6216741551.

The spelling of 769121 in words is "seven hundred sixty-nine thousand, one hundred twenty-one".