76628669 has 8 divisors (see below), whose sum is σ = 83922720. Its totient is φ = 69534576.

The previous prime is 76628641. The next prime is 76628677. The reversal of 76628669 is 96682667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76628669 - 2²⁴ = 59851453 is a prime.

It is a super-2 number, since 2×76628669² = 11743905825423122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76628609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49187 + ... + 50720.

It is an arithmetic number, because the mean of its divisors is an integer number (10490340).

Almost surely, 2^76628669 is an apocalyptic number.

It is an amenable number.

76628669 is a deficient number, since it is larger than the sum of its proper divisors (7294051).

76628669 is a wasteful number, since it uses less digits than its factorization.

76628669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99979.

The product of its digits is 1306368, while the sum is 50.

The square root of 76628669 is about 8753.7802691180. The cubic root of 76628669 is about 424.7471049086.

The spelling of 76628669 in words is "seventy-six million, six hundred twenty-eight thousand, six hundred sixty-nine".