76765669 has 4 divisors (see below), whose sum is σ = 77318080. Its totient is φ = 76213260.

The previous prime is 76765631. The next prime is 76765673. The reversal of 76765669 is 96656767.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96656767 = 557 ⋅173531.

It is a cyclic number.

It is not a de Polignac number, because 76765669 - 2¹⁹ = 76241381 is a prime.

It is a super-2 number, since 2×76765669² = 11785935874035122, 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 (76765069) 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, 275997 + ... + 276274.

It is an arithmetic number, because the mean of its divisors is an integer number (19329520).

Almost surely, 2^76765669 is an apocalyptic number.

It is an amenable number.

76765669 is a deficient number, since it is larger than the sum of its proper divisors (552411).

76765669 is a wasteful number, since it uses less digits than its factorization.

76765669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552410.

The product of its digits is 2857680, while the sum is 52.

The square root of 76765669 is about 8761.6019653942. The cubic root of 76765669 is about 425.0000811995. Note that the first 4 decimals are identical.

It can be divided in two parts, 7 and 6765669, that added together give a palindrome (6765676).

The spelling of 76765669 in words is "seventy-six million, seven hundred sixty-five thousand, six hundred sixty-nine".