769669 has 4 divisors (see below), whose sum is σ = 773260. Its totient is φ = 766080.

The previous prime is 769663. The next prime is 769673. The reversal of 769669 is 966967.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966967 = 19 ⋅50893.

It can be written as a sum of positive squares in 2 ways, for example, as 656100 + 113569 = 810^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 769669 - 2³ = 769661 is a prime.

It is a super-2 number, since 2×769669² = 1184780739122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769661) 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, 1452 + ... + 1909.

It is an arithmetic number, because the mean of its divisors is an integer number (193315).

2⁷⁶⁹⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

769669 is a deficient number, since it is larger than the sum of its proper divisors (3591).

769669 is a wasteful number, since it uses less digits than its factorization.

769669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590.

The product of its digits is 122472, while the sum is 43.

The square root of 769669 is about 877.3078137119. The cubic root of 769669 is about 91.6434291879.

The spelling of 769669 in words is "seven hundred sixty-nine thousand, six hundred sixty-nine".