76678387 has 2 divisors, whose sum is σ = 76678388. Its totient is φ = 76678386.

The previous prime is 76678379. The next prime is 76678421. The reversal of 76678387 is 78387667.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76678387 - 2³ = 76678379 is a prime.

It is not a weakly prime, because it can be changed into another prime (76678337) 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 as a sum of consecutive naturals, namely, 38339193 + 38339194.

It is an arithmetic number, because the mean of its divisors is an integer number (38339194).

Almost surely, 2^76678387 is an apocalyptic number.

76678387 is a deficient number, since it is larger than the sum of its proper divisors (1).

76678387 is an equidigital number, since it uses as much as digits as its factorization.

76678387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 52.

The square root of 76678387 is about 8756.6196103291. The cubic root of 76678387 is about 424.8389461274.

The spelling of 76678387 in words is "seventy-six million, six hundred seventy-eight thousand, three hundred eighty-seven".