76676521 has 8 divisors (see below), whose sum is σ = 78490944. Its totient is φ = 74882640.

The previous prime is 76676513. The next prime is 76676557. The reversal of 76676521 is 12567667.

It is a happy number.

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 76676521 - 2³ = 76676513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76676021) 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, 2551 + ... + 12643.

It is an arithmetic number, because the mean of its divisors is an integer number (9811368).

Almost surely, 2^76676521 is an apocalyptic number.

76676521 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

76676521 is a deficient number, since it is larger than the sum of its proper divisors (1814423).

76676521 is a wasteful number, since it uses less digits than its factorization.

76676521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271.

The product of its digits is 105840, while the sum is 40.

The square root of 76676521 is about 8756.5130617158. The cubic root of 76676521 is about 424.8354998894.

The spelling of 76676521 in words is "seventy-six million, six hundred seventy-six thousand, five hundred twenty-one".