76880691 has 16 divisors (see below), whose sum is σ = 115600000. Its totient is φ = 50487624.

The previous prime is 76880663. The next prime is 76880693. The reversal of 76880691 is 19608867.

It is a happy number.

It is not a de Polignac number, because 76880691 - 2⁶ = 76880627 is a prime.

It is a super-3 number, since 3×76880691³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76880693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19441 + ... + 23058.

It is an arithmetic number, because the mean of its divisors is an integer number (7225000).

Almost surely, 2^76880691 is an apocalyptic number.

76880691 is a deficient number, since it is larger than the sum of its proper divisors (38719309).

76880691 is a wasteful number, since it uses less digits than its factorization.

76880691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42575 (or 42569 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 76880691 is about 8768.1634907203. The cubic root of 76880691 is about 425.2122418565.

The spelling of 76880691 in words is "seventy-six million, eight hundred eighty thousand, six hundred ninety-one".