76669 has 4 divisors (see below), whose sum is σ = 78496. Its totient is φ = 74844.

The previous prime is 76667. The next prime is 76673. The reversal of 76669 is 96667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76669 - 2¹ = 76667 is a prime.

It is a super-2 number, since 2×76669² = 11756271122, 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 (76667) 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, 849 + ... + 934.

It is an arithmetic number, because the mean of its divisors is an integer number (19624).

2⁷⁶⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

76669 is a deficient number, since it is larger than the sum of its proper divisors (1827).

76669 is a wasteful number, since it uses less digits than its factorization.

76669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826.

The product of its digits is 13608, while the sum is 34.

The square root of 76669 is about 276.8916755701. The cubic root of 76669 is about 42.4821609100.

The spelling of 76669 in words is "seventy-six thousand, six hundred sixty-nine".